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3168 lines
92 KiB
C
3168 lines
92 KiB
C
#include "input.h"
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#include "linux.h"
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#include "version.h"
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#include "egcpool.h"
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#include "internal.h"
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#include <zlib.h>
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#include <time.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <limits.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <unistr.h>
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#include <locale.h>
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#include <uniwbrk.h>
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#include <inttypes.h>
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#include <notcurses/direct.h>
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#include "compat/compat.h"
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#define ESC "\x1b"
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void notcurses_version_components(int* major, int* minor, int* patch, int* tweak){
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*major = NOTCURSES_VERNUM_MAJOR;
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*minor = NOTCURSES_VERNUM_MINOR;
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*patch = NOTCURSES_VERNUM_PATCH;
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*tweak = atoi(NOTCURSES_VERSION_TWEAK);
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}
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int notcurses_enter_alternate_screen(notcurses* nc){
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if(enter_alternate_screen(nc->ttyfp, &nc->tcache, true)){
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return -1;
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}
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ncplane_set_scrolling(notcurses_stdplane(nc), false);
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return 0;
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}
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int notcurses_leave_alternate_screen(notcurses* nc){
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if(leave_alternate_screen(nc->ttyfp, &nc->tcache)){
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return -1;
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}
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// move to the end of our output
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if(nc->rstate.logendy < 0){
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return 0;
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}
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ncplane_cursor_move_yx(notcurses_stdplane(nc), nc->rstate.logendy, nc->rstate.logendx);
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return 0;
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}
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// reset the current colors, styles, and palette. called on startup (to purge
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// any preexisting styling) and shutdown (to not affect further programs).
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int reset_term_attributes(const tinfo* ti, fbuf* f){
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int ret = 0;
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const char* esc;
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if((esc = get_escape(ti, ESCAPE_RESTORECOLORS)) && fbuf_emit(f, esc)){
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ret = -1;
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}
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if((esc = get_escape(ti, ESCAPE_OP)) && fbuf_emit(f, esc)){
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ret = -1;
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}
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if((esc = get_escape(ti, ESCAPE_SGR0)) && fbuf_emit(f, esc)){
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ret = -1;
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}
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if((esc = get_escape(ti, ESCAPE_OC)) && fbuf_emit(f, esc)){
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ret = -1;
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}
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return ret;
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}
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// Do the minimum necessary stuff to restore the terminal, then return. This is
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// the end of the line for fatal signal handlers. notcurses_stop() will go on
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// to tear down and account for internal structures. note that we do lots of
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// shit here that is unsafe within a signal handler =[ FIXME.
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static int
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notcurses_stop_minimal(void* vnc){
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notcurses* nc = vnc;
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// collect output into the memstream buffer, and then dump it directly using
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// blocking_write(), to avoid problems with unreliable fflush().
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fbuf* f = &nc->rstate.f;
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fbuf_reset(f);
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int ret = 0;
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ret |= drop_signals(nc);
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// be sure to write the restoration sequences *prior* to running rmcup, as
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// they apply to the screen (alternate or otherwise) we're actually using.
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const char* esc;
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// ECMA-48 suggests that we can interrupt an escape code with a NUL
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// byte. if we leave an active escape open, it can lock up the terminal.
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// we only want to do it when in the middle of a rasterization, though. FIXME
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if(nc->tcache.pixel_shutdown){
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ret |= nc->tcache.pixel_shutdown(f);
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}
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ret |= mouse_disable(f);
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ret |= reset_term_attributes(&nc->tcache, f);
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if(nc->tcache.ttyfd >= 0){
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if((esc = get_escape(&nc->tcache, ESCAPE_RMCUP))){
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if(sprite_clear_all(&nc->tcache, f)){
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ret = -1;
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}
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if(fbuf_emit(f, esc)){
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ret = -1;
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}
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}
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ret |= tcsetattr(nc->tcache.ttyfd, TCSANOW, &nc->tcache.tpreserved);
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}
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if((esc = get_escape(&nc->tcache, ESCAPE_RMKX)) && fbuf_emit(f, esc)){
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ret = -1;
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}
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const char* cnorm = get_escape(&nc->tcache, ESCAPE_CNORM);
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if(cnorm && fbuf_emit(f, cnorm)){
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ret = -1;
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}
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return blocking_write(fileno(nc->ttyfp), f->buf, f->used);
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}
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// make a heap-allocated wchar_t expansion of the multibyte string at s
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wchar_t* wchar_from_utf8(const char* s){
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mbstate_t ps;
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memset(&ps, 0, sizeof(ps));
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// worst case is a wchar_t for every byte of input (all-ASCII case)
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const size_t maxw = strlen(s) + 1;
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wchar_t* dst = malloc(sizeof(*dst) * maxw);
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size_t wcount = mbsrtowcs(dst, &s, maxw, &ps);
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if(wcount == (size_t)-1){
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free(dst);
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return NULL;
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}
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if(s){
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free(dst);
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return NULL;
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}
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return dst;
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}
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int ncplane_putstr_aligned(ncplane* n, int y, ncalign_e align, const char* s){
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wchar_t* w = wchar_from_utf8(s);
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if(w == NULL){
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return -1;
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}
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int r = ncplane_putwstr_aligned(n, y, align, w);
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free(w);
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return r;
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}
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static const char NOTCURSES_VERSION[] =
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NOTCURSES_VERSION_MAJOR "."
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NOTCURSES_VERSION_MINOR "."
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NOTCURSES_VERSION_PATCH;
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const char* notcurses_version(void){
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return NOTCURSES_VERSION;
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}
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void* ncplane_set_userptr(ncplane* n, void* opaque){
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void* ret = n->userptr;
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n->userptr = opaque;
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return ret;
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}
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void* ncplane_userptr(ncplane* n){
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return n->userptr;
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}
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const void* ncplane_userptr_const(const ncplane* n){
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return n->userptr;
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}
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// is the cursor in an invalid position? it never should be, but it's probably
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// better to make sure (it's cheap) than to read from/write to random crap.
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static bool
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cursor_invalid_p(const ncplane* n){
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if(n->y >= n->leny || n->x >= n->lenx){
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return true;
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}
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if(n->y < 0 || n->x < 0){
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return true;
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}
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return false;
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}
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char* ncplane_at_cursor(ncplane* n, uint16_t* stylemask, uint64_t* channels){
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return ncplane_at_yx(n, n->y, n->x, stylemask, channels);
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}
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char* ncplane_at_yx(const ncplane* n, int y, int x, uint16_t* stylemask, uint64_t* channels){
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if(y < n->leny && x < n->lenx){
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if(y >= 0 && x >= 0){
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const cell* yx = &n->fb[nfbcellidx(n, y, x)];
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// if we're the right side of a wide glyph, we return the main glyph
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if(nccell_wide_right_p(yx)){
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return ncplane_at_yx(n, y, x - 1, stylemask, channels);
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}
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char* ret = nccell_extract(n, yx, stylemask, channels);
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if(ret == NULL){
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return NULL;
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}
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//fprintf(stderr, "GOT [%s]\n", ret);
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if(strcmp(ret, "") == 0){
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free(ret);
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ret = nccell_strdup(n, &n->basecell);
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if(ret == NULL){
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return NULL;
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}
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if(stylemask){
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*stylemask = n->basecell.stylemask;
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}
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}
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// FIXME load basecell channels if appropriate
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return ret;
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}
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}
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return NULL;
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}
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int ncplane_at_cursor_cell(ncplane* n, nccell* c){
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return ncplane_at_yx_cell(n, n->y, n->x, c);
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}
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int ncplane_at_yx_cell(ncplane* n, int y, int x, nccell* c){
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if(y < n->leny && x < n->lenx){
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if(y >= 0 && x >= 0){
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nccell* targ = ncplane_cell_ref_yx(n, y, x);
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if(nccell_duplicate(n, c, targ) == 0){
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// FIXME take base cell into account where necessary!
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return strlen(nccell_extended_gcluster(n, targ));
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}
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}
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}
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return -1;
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}
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void ncplane_dim_yx(const ncplane* n, int* rows, int* cols){
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if(rows){
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*rows = n->leny;
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}
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if(cols){
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*cols = n->lenx;
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}
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}
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// anyone calling this needs ensure the ncplane's framebuffer is updated
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// to reflect changes in geometry. also called at startup for standard plane.
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int update_term_dimensions(int* rows, int* cols, tinfo* tcache, int margin_b){
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// if we're not a real tty, we presumably haven't changed geometry, return
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if(tcache->ttyfd < 0){
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if(rows){
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*rows = tcache->default_rows;
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}
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if(cols){
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*cols = tcache->default_cols;
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}
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if(tcache){
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tcache->cellpixy = 0;
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tcache->cellpixx = 0;
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}
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return 0;
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}
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// FIXME
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#ifndef __MINGW64__
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struct winsize ws;
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int i = ioctl(tcache->ttyfd, TIOCGWINSZ, &ws);
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if(i < 0){
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logerror("TIOCGWINSZ failed on %d (%s)\n", tcache->ttyfd, strerror(errno));
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return -1;
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}
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if(ws.ws_row <= 0 || ws.ws_col <= 0){
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logerror("Bogus return from TIOCGWINSZ on %d (%d/%d)\n",
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tcache->ttyfd, ws.ws_row, ws.ws_col);
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return -1;
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}
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int rowsafe;
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if(rows == NULL){
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rows = &rowsafe;
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}
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*rows = ws.ws_row;
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if(cols){
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*cols = ws.ws_col;
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}
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if(tcache){
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#ifdef __linux__
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if(tcache->linux_fb_fd >= 0){
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get_linux_fb_pixelgeom(tcache, &tcache->pixy, &tcache->pixx);
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}else
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#endif
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{
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// we might have the pixel geometry from CSI14t, so don't override a
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// valid earlier response with 0s from the ioctl. we do want to fire
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// off a fresh CSI14t in this case, though FIXME.
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if(ws.ws_ypixel){
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tcache->pixy = ws.ws_ypixel;
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tcache->pixx = ws.ws_xpixel;
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}
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}
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// update even if we didn't get values just now, because we need set
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// cellpix{y,x} up from an initial CSI14n, which set only pix{y,x}.
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tcache->cellpixy = ws.ws_row ? tcache->pixy / ws.ws_row : 0;
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tcache->cellpixx = ws.ws_col ? tcache->pixx / ws.ws_col : 0;
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if(tcache->cellpixy == 0 || tcache->cellpixx == 0){
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tcache->pixel_draw = NULL; // disable support
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}
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}
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#else
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/*
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CONSOLE_SCREEN_BUFFER_INFO csbi;
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int columns, rows;
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if(GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)){
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if(cols){
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*cols = csbi.srWindow.Right - csbi.srWindow.Left + 1;
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}
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if(rows){
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*rows = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
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}
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}else{
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*/
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if(rows){
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*rows = tcache->default_rows;
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}
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if(cols){
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*cols = tcache->default_cols;
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}
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//}
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#endif
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if(tcache->sixel_maxy_pristine){
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int sixelrows = *rows - 1;
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// if the bottom margin is at least one row, we can draw into the last
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// row of our visible area. we must leave the true bottom row alone.
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if(margin_b){
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++sixelrows;
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}
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tcache->sixel_maxy = sixelrows * tcache->cellpixy;
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if(tcache->sixel_maxy > tcache->sixel_maxy_pristine){
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tcache->sixel_maxy = tcache->sixel_maxy_pristine;
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}
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}
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return 0;
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}
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// destroy the sprixels of an ncpile (this will not hide the sprixels)
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static void
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free_sprixels(ncpile* n){
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while(n->sprixelcache){
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sprixel* tmp = n->sprixelcache->next;
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sprixel_free(n->sprixelcache);
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n->sprixelcache = tmp;
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}
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}
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// destroy an empty ncpile. only call with pilelock held.
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static void
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ncpile_destroy(ncpile* pile){
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if(pile){
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pile->prev->next = pile->next;
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pile->next->prev = pile->prev;
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free_sprixels(pile);
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free(pile->crender);
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free(pile);
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}
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}
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void free_plane(ncplane* p){
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if(p){
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// ncdirect fakes an ncplane with no ->pile
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if(ncplane_pile(p)){
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notcurses* nc = ncplane_notcurses(p);
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pthread_mutex_lock(&nc->stats.lock);
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--ncplane_notcurses(p)->stats.s.planes;
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ncplane_notcurses(p)->stats.s.fbbytes -= sizeof(*p->fb) * p->leny * p->lenx;
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pthread_mutex_unlock(&nc->stats.lock);
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if(p->above == NULL && p->below == NULL){
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pthread_mutex_lock(&nc->pilelock);
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ncpile_destroy(ncplane_pile(p));
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pthread_mutex_unlock(&nc->pilelock);
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}
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}
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if(p->sprite){
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sprixel_hide(p->sprite);
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}
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if(p->tam){
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for(int y = 0 ; y < p->leny ; ++y){
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for(int x = 0 ; x < p->lenx ; ++x){
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free(p->tam[y * p->lenx + x].auxvector);
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p->tam[y * p->lenx + x].auxvector = NULL;
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}
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}
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}
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free(p->tam);
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egcpool_dump(&p->pool);
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free(p->name);
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free(p->fb);
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free(p);
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}
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}
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// create a new ncpile. only call with pilelock held.
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static ncpile*
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make_ncpile(notcurses* nc, ncplane* n){
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ncpile* ret = malloc(sizeof(*ret));
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if(ret){
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ret->nc = nc;
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ret->top = n;
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ret->bottom = n;
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ret->roots = n;
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n->bprev = &ret->roots;
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if(nc->stdplane){ // stdplane (and thus stdpile) has already been created
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ret->prev = ncplane_pile(nc->stdplane)->prev;
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ncplane_pile(nc->stdplane)->prev->next = ret;
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ret->next = ncplane_pile(nc->stdplane);
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ncplane_pile(nc->stdplane)->prev = ret;
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}else{
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ret->prev = ret;
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ret->next = ret;
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}
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n->pile = ret;
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n->above = NULL;
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n->below = NULL;
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ret->dimy = 0;
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ret->dimx = 0;
|
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ret->crender = NULL;
|
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ret->crenderlen = 0;
|
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ret->sprixelcache = NULL;
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ret->scrolls = 0;
|
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}
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return ret;
|
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}
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|
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// create a new ncplane at the specified location (relative to the true screen,
|
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// having origin at 0,0), having the specified size, and put it at the top of
|
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// the planestack. its cursor starts at its origin; its style starts as null.
|
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// a plane may exceed the boundaries of the screen, but must have positive
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// size in both dimensions. bind the plane to 'n', which may be NULL to create
|
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// a new pile. if bound to a plane instead, this plane moves when that plane
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// moves, and coordinates to move to are relative to that plane.
|
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// there are two denormalized case we also must handle, that of the "fake"
|
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// isolated ncplane created by ncdirect for rendering visuals. in that case
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// (and only in that case), nc is NULL (as is n). there's also creation of the
|
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// initial standard plane, in which case nc is not NULL, but nc->stdplane *is*
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// (as once more is n).
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ncplane* ncplane_new_internal(notcurses* nc, ncplane* n,
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const ncplane_options* nopts){
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if(nopts->flags >= (NCPLANE_OPTION_MARGINALIZED << 1u)){
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logwarn("Provided unsupported flags %016jx\n", (uintmax_t)nopts->flags);
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}
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if(nopts->flags & NCPLANE_OPTION_HORALIGNED || nopts->flags & NCPLANE_OPTION_VERALIGNED){
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if(n == NULL){
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logerror("Alignment requires a parent plane\n");
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return NULL;
|
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}
|
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}
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if(nopts->flags & NCPLANE_OPTION_MARGINALIZED){
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if(nopts->rows != 0 || nopts->cols != 0){
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logerror("Geometry specified with margins (r=%d, c=%d)\n",
|
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nopts->rows, nopts->cols);
|
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return NULL;
|
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}
|
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}else if(nopts->rows <= 0 || nopts->cols <= 0){
|
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logerror("Won't create denormalized plane (r=%d, c=%d)\n",
|
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nopts->rows, nopts->cols);
|
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return NULL;
|
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}
|
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ncplane* p = malloc(sizeof(*p));
|
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if(p == NULL){
|
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return NULL;
|
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}
|
|
p->scrolling = false;
|
|
p->fixedbound = nopts->flags & NCPLANE_OPTION_FIXED;
|
|
if(nopts->flags & NCPLANE_OPTION_MARGINALIZED){
|
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p->margin_b = nopts->margin_b;
|
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p->margin_r = nopts->margin_r;
|
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if(n){ // use parent size
|
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p->leny = ncplane_dim_y(n);
|
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p->lenx = ncplane_dim_x(n);
|
|
}else{ // use pile size
|
|
notcurses_term_dim_yx(nc, &p->leny, &p->lenx);
|
|
}
|
|
if((p->leny -= p->margin_b) <= 0){
|
|
p->leny = 1;
|
|
}
|
|
if((p->lenx -= p->margin_r) <= 0){
|
|
p->lenx = 1;
|
|
}
|
|
}else{
|
|
p->leny = nopts->rows;
|
|
p->lenx = nopts->cols;
|
|
}
|
|
size_t fbsize = sizeof(*p->fb) * (p->leny * p->lenx);
|
|
if((p->fb = malloc(fbsize)) == NULL){
|
|
logerror("Error allocating cellmatrix (r=%d, c=%d)\n",
|
|
p->leny, p->lenx);
|
|
free(p);
|
|
return NULL;
|
|
}
|
|
memset(p->fb, 0, fbsize);
|
|
p->x = p->y = 0;
|
|
p->logrow = 0;
|
|
p->sprite = NULL;
|
|
p->blist = NULL;
|
|
p->name = strdup(nopts->name ? nopts->name : "");
|
|
p->halign = NCALIGN_UNALIGNED;
|
|
p->valign = NCALIGN_UNALIGNED;
|
|
p->tam = NULL;
|
|
if(!n){ // new root/standard plane
|
|
p->absy = nopts->y;
|
|
p->absx = nopts->x;
|
|
p->bnext = NULL;
|
|
p->bprev = NULL;
|
|
p->boundto = p;
|
|
}else{ // bound to preexisting pile
|
|
if(nopts->flags & NCPLANE_OPTION_HORALIGNED){
|
|
p->absx = ncplane_halign(n, nopts->x, nopts->cols);
|
|
p->halign = nopts->x;
|
|
}else{
|
|
p->absx = nopts->x;
|
|
}
|
|
p->absx += n->absx;
|
|
if(nopts->flags & NCPLANE_OPTION_VERALIGNED){
|
|
p->absy = ncplane_valign(n, nopts->y, nopts->rows);
|
|
p->valign = nopts->y;
|
|
}else{
|
|
p->absy = nopts->y;
|
|
}
|
|
p->absy += n->absy;
|
|
if( (p->bnext = n->blist) ){
|
|
n->blist->bprev = &p->bnext;
|
|
}
|
|
p->bprev = &n->blist;
|
|
*p->bprev = p;
|
|
p->boundto = n;
|
|
}
|
|
// FIXME handle top/left margins
|
|
p->resizecb = nopts->resizecb;
|
|
p->stylemask = 0;
|
|
p->channels = 0;
|
|
egcpool_init(&p->pool);
|
|
nccell_init(&p->basecell);
|
|
p->userptr = nopts->userptr;
|
|
if(nc == NULL){ // fake ncplane backing ncdirect object
|
|
p->above = NULL;
|
|
p->below = NULL;
|
|
p->pile = NULL;
|
|
}else{
|
|
pthread_mutex_lock(&nc->pilelock);
|
|
ncpile* pile = n ? ncplane_pile(n) : NULL;
|
|
if( (p->pile = pile) ){ // existing pile
|
|
p->above = NULL;
|
|
if( (p->below = pile->top) ){ // always happens save initial plane
|
|
pile->top->above = p;
|
|
}else{
|
|
pile->bottom = p;
|
|
}
|
|
pile->top = p;
|
|
}else{ // new pile
|
|
make_ncpile(nc, p);
|
|
}
|
|
pthread_mutex_lock(&nc->stats.lock);
|
|
nc->stats.s.fbbytes += fbsize;
|
|
++nc->stats.s.planes;
|
|
pthread_mutex_unlock(&nc->stats.lock);
|
|
pthread_mutex_unlock(&nc->pilelock);
|
|
}
|
|
loginfo("Created new %dx%d plane \"%s\" @ %dx%d\n",
|
|
p->leny, p->lenx, p->name ? p->name : "", p->absy, p->absx);
|
|
return p;
|
|
}
|
|
|
|
// create an ncplane of the specified dimensions, but do not yet place it in
|
|
// the z-buffer. clear out all cells. this is for a wholly new context.
|
|
// FIXME set up using resizecb rather than special-purpose from SIGWINCH
|
|
static ncplane*
|
|
create_initial_ncplane(notcurses* nc, int dimy, int dimx){
|
|
ncplane_options nopts = {
|
|
.y = 0, .x = 0,
|
|
.rows = dimy - (nc->margin_t + nc->margin_b),
|
|
.cols = dimx - (nc->margin_l + nc->margin_r),
|
|
.userptr = NULL,
|
|
.name = "std",
|
|
.resizecb = ncplane_resize_maximize,
|
|
.flags = 0,
|
|
};
|
|
return nc->stdplane = ncplane_new_internal(nc, NULL, &nopts);
|
|
}
|
|
|
|
ncplane* notcurses_stdplane(notcurses* nc){
|
|
return nc->stdplane;
|
|
}
|
|
|
|
const ncplane* notcurses_stdplane_const(const notcurses* nc){
|
|
return nc->stdplane;
|
|
}
|
|
|
|
ncplane* ncplane_create(ncplane* n, const ncplane_options* nopts){
|
|
return ncplane_new_internal(ncplane_notcurses(n), n, nopts);
|
|
}
|
|
|
|
ncplane* ncpile_create(notcurses* nc, const struct ncplane_options* nopts){
|
|
return ncplane_new_internal(nc, NULL, nopts);
|
|
}
|
|
|
|
struct ncplane* ncplane_new(struct ncplane* n, int rows, int cols, int y, int x, void* opaque, const char* name){
|
|
ncplane_options nopts = {
|
|
.y = y,
|
|
.x = x,
|
|
.rows = rows,
|
|
.cols = cols,
|
|
.userptr = opaque,
|
|
.name = name,
|
|
.resizecb = NULL,
|
|
.flags = 0,
|
|
};
|
|
return ncplane_create(n, &nopts);
|
|
}
|
|
|
|
void ncplane_home(ncplane* n){
|
|
n->x = 0;
|
|
n->y = 0;
|
|
}
|
|
|
|
int ncplane_cursor_move_yx(ncplane* n, int y, int x){
|
|
if(x >= n->lenx){
|
|
logerror("Target x %d >= length %d\n", x, n->lenx);
|
|
return -1;
|
|
}else if(x < 0){
|
|
if(x < -1){
|
|
logerror("Negative target x %d\n", x);
|
|
return -1;
|
|
}
|
|
}else{
|
|
n->x = x;
|
|
}
|
|
if(y >= n->leny){
|
|
logerror("Target y %d >= height %d\n", y, n->leny);
|
|
return -1;
|
|
}else if(y < 0){
|
|
if(y < -1){
|
|
logerror("Negative target y %d\n", y);
|
|
return -1;
|
|
}
|
|
}else{
|
|
n->y = y;
|
|
}
|
|
if(cursor_invalid_p(n)){
|
|
logerror("Invalid cursor following move (%d/%d)\n", n->y, n->x);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ncplane_cursor_move_rel(ncplane* n, int y, int x){
|
|
if (n->y + y == -1){
|
|
logerror("Invalid target y -1\n");
|
|
return -1;
|
|
}else if (n->x + x == -1){
|
|
logerror("Invalid target x -1\n");
|
|
return -1;
|
|
}else return ncplane_cursor_move_yx(n, n->y + y, n->x + x);
|
|
}
|
|
|
|
ncplane* ncplane_dup(const ncplane* n, void* opaque){
|
|
int dimy = n->leny;
|
|
int dimx = n->lenx;
|
|
const int placey = n->absy;
|
|
const int placex = n->absx;
|
|
struct ncplane_options nopts = {
|
|
.y = placey,
|
|
.x = placex,
|
|
.rows = dimy,
|
|
.cols = dimx,
|
|
.userptr = opaque,
|
|
.name = n->name,
|
|
.resizecb = ncplane_resizecb(n),
|
|
.flags = 0,
|
|
};
|
|
ncplane* newn = ncplane_create(n->boundto, &nopts);
|
|
if(newn == NULL){
|
|
return NULL;
|
|
}
|
|
// we don't duplicate sprites...though i'm unsure why not
|
|
size_t fbsize = sizeof(*n->fb) * dimx * dimy;
|
|
if(egcpool_dup(&newn->pool, &n->pool)){
|
|
ncplane_destroy(newn);
|
|
return NULL;
|
|
}
|
|
memmove(newn->fb, n->fb, fbsize);
|
|
if(ncplane_cursor_move_yx(newn, n->y, n->x) < 0){
|
|
ncplane_destroy(newn);
|
|
return NULL;
|
|
}
|
|
newn->halign = n->halign;
|
|
newn->stylemask = ncplane_styles(n);
|
|
newn->channels = ncplane_channels(n);
|
|
// we dupd the egcpool, so just dup the goffset
|
|
newn->basecell = n->basecell;
|
|
return newn;
|
|
}
|
|
|
|
// call the resize callback for each bound child in turn. we only need to do
|
|
// the first generation; if they resize, they'll invoke
|
|
// ncplane_resize_internal(), leading to this function being called anew.
|
|
int resize_callbacks_children(ncplane* n){
|
|
int ret = 0;
|
|
for(struct ncplane* child = n->blist ; child ; child = child->bnext){
|
|
if(child->resizecb){
|
|
ret |= child->resizecb(child);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
// can be used on stdplane, unlike ncplane_resize() which prohibits it.
|
|
int ncplane_resize_internal(ncplane* n, int keepy, int keepx, int keepleny,
|
|
int keeplenx, int yoff, int xoff, int ylen, int xlen){
|
|
if(keepleny < 0 || keeplenx < 0){ // can't retain negative size
|
|
logerror("Can't retain negative size %dx%d\n", keepleny, keeplenx);
|
|
return -1;
|
|
}
|
|
if(keepy < 0 || keepx < 0){ // can't start at negative origin
|
|
logerror("Can't retain negative offset %dx%d\n", keepy, keepx);
|
|
return -1;
|
|
}
|
|
if((!keepleny && keeplenx) || (keepleny && !keeplenx)){ // both must be 0
|
|
logerror("Can't retain null dimension %dx%d\n", keepleny, keeplenx);
|
|
return -1;
|
|
}
|
|
// can't be smaller than keep length
|
|
if(ylen < keepleny){
|
|
logerror("Can't map in y dimension: %d < %d\n", ylen, keepleny);
|
|
return -1;
|
|
}
|
|
if(xlen < keeplenx){
|
|
logerror("Can't map in x dimension: %d < %d\n", xlen, keeplenx);
|
|
return -1;
|
|
}
|
|
if(ylen <= 0 || xlen <= 0){ // can't resize to trivial or negative size
|
|
logerror("Can't achieve meaningless size %dx%d\n", ylen, xlen);
|
|
return -1;
|
|
}
|
|
int rows, cols;
|
|
ncplane_dim_yx(n, &rows, &cols);
|
|
if(keepleny + keepy > rows){
|
|
logerror("Can't keep %d@%d rows from %d\n", keepleny, keepy, rows);
|
|
return -1;
|
|
}
|
|
if(keeplenx + keepx > cols){
|
|
logerror("Can't keep %d@%d cols from %d\n", keeplenx, keepx, cols);
|
|
return -1;
|
|
}
|
|
loginfo("%dx%d @ %d/%d → %d/%d @ %d/%d (keeping %dx%d from %d/%d)\n", rows, cols, n->absy, n->absx, ylen, xlen, n->absy + keepy + yoff, n->absx + keepx + xoff, keepleny, keeplenx, keepy, keepx);
|
|
if(n->absy == n->absy + keepy && n->absx == n->absx + keepx &&
|
|
rows == ylen && cols == xlen){
|
|
return 0;
|
|
}
|
|
notcurses* nc = ncplane_notcurses(n);
|
|
if(n->sprite){
|
|
sprixel_hide(n->sprite);
|
|
}
|
|
// we're good to resize. we'll need alloc up a new framebuffer, and copy in
|
|
// those elements we're retaining, zeroing out the rest. alternatively, if
|
|
// we've shrunk, we will be filling the new structure.
|
|
int oldarea = rows * cols;
|
|
int keptarea = keepleny * keeplenx;
|
|
int newarea = ylen * xlen;
|
|
size_t fbsize = sizeof(nccell) * newarea;
|
|
nccell* fb = malloc(fbsize);
|
|
if(fb == NULL){
|
|
return -1;
|
|
}
|
|
if(n->tam){
|
|
loginfo("TAM realloc to %d entries\n", newarea);
|
|
tament* tmptam = realloc(n->tam, sizeof(*tmptam) * newarea);
|
|
if(tmptam == NULL){
|
|
free(fb);
|
|
return -1;
|
|
}
|
|
n->tam = tmptam;
|
|
// FIXME need to set up the entries based on new distribution for
|
|
// cell-pixel geometry change, and split across new rows
|
|
if(newarea > oldarea){
|
|
memset(n->tam + oldarea, 0, sizeof(*n->tam) * (newarea - oldarea));
|
|
}
|
|
}
|
|
// update the cursor, if it would otherwise be off-plane
|
|
if(n->y >= ylen){
|
|
n->y = ylen - 1;
|
|
}
|
|
if(n->x >= xlen){
|
|
n->x = xlen - 1;
|
|
}
|
|
nccell* preserved = n->fb;
|
|
pthread_mutex_lock(&nc->stats.lock);
|
|
ncplane_notcurses(n)->stats.s.fbbytes -= sizeof(*preserved) * (rows * cols);
|
|
ncplane_notcurses(n)->stats.s.fbbytes += fbsize;
|
|
pthread_mutex_unlock(&nc->stats.lock);
|
|
n->fb = fb;
|
|
const int oldabsy = n->absy;
|
|
// go ahead and move. we can no longer fail at this point. but don't yet
|
|
// resize, because n->len[xy] are used in fbcellidx() in the loop below. we
|
|
// don't use ncplane_move_yx(), because we want to planebinding-invariant.
|
|
n->absy += keepy + yoff;
|
|
n->absx += keepx + xoff;
|
|
//fprintf(stderr, "absx: %d keepx: %d xoff: %d\n", n->absx, keepx, xoff);
|
|
if(keptarea == 0){ // keep nothing, resize/move only
|
|
// if we're keeping nothing, dump the old egcspool. otherwise, we go ahead
|
|
// and keep it. perhaps we ought compact it?
|
|
memset(fb, 0, sizeof(*fb) * newarea);
|
|
egcpool_dump(&n->pool);
|
|
n->lenx = xlen;
|
|
n->leny = ylen;
|
|
free(preserved);
|
|
return resize_callbacks_children(n);
|
|
}
|
|
// we currently have maxy rows of maxx cells each. we will be keeping rows
|
|
// keepy..keepy + keepleny - 1 and columns keepx..keepx + keeplenx - 1.
|
|
// anything else is zerod out. itery is the row we're writing *to*, and we
|
|
// must write to each (and every cell in each).
|
|
for(int itery = 0 ; itery < ylen ; ++itery){
|
|
int truey = itery + n->absy;
|
|
int sourceoffy = truey - oldabsy;
|
|
//fprintf(stderr, "sourceoffy: %d keepy: %d ylen: %d\n", sourceoffy, keepy, ylen);
|
|
// if we have nothing copied to this line, zero it out in one go
|
|
if(sourceoffy < keepy || sourceoffy >= keepy + keepleny){
|
|
//fprintf(stderr, "writing 0s to line %d of %d\n", itery, ylen);
|
|
memset(fb + (itery * xlen), 0, sizeof(*fb) * xlen);
|
|
}else{
|
|
int copyoff = itery * xlen; // our target at any given time
|
|
// we do have something to copy, and zero, one, or two regions to zero out
|
|
int copied = 0;
|
|
if(xoff < 0){
|
|
memset(fb + copyoff, 0, sizeof(*fb) * -xoff);
|
|
copyoff += -xoff;
|
|
copied += -xoff;
|
|
}
|
|
const int sourceidx = nfbcellidx(n, sourceoffy, keepx);
|
|
//fprintf(stderr, "copying line %d (%d) to %d (%d)\n", sourceoffy, sourceidx, copyoff / xlen, copyoff);
|
|
memcpy(fb + copyoff, preserved + sourceidx, sizeof(*fb) * keeplenx);
|
|
copyoff += keeplenx;
|
|
copied += keeplenx;
|
|
if(xlen > copied){
|
|
memset(fb + copyoff, 0, sizeof(*fb) * (xlen - copied));
|
|
}
|
|
}
|
|
}
|
|
n->lenx = xlen;
|
|
n->leny = ylen;
|
|
free(preserved);
|
|
return resize_callbacks_children(n);
|
|
}
|
|
|
|
int ncplane_resize(ncplane* n, int keepy, int keepx, int keepleny,
|
|
int keeplenx, int yoff, int xoff, int ylen, int xlen){
|
|
if(n == ncplane_notcurses(n)->stdplane){
|
|
//fprintf(stderr, "Can't resize standard plane\n");
|
|
return -1;
|
|
}
|
|
return ncplane_resize_internal(n, keepy, keepx, keepleny, keeplenx,
|
|
yoff, xoff, ylen, xlen);
|
|
}
|
|
|
|
int ncplane_destroy(ncplane* ncp){
|
|
if(ncp == NULL){
|
|
return 0;
|
|
}
|
|
if(ncplane_notcurses(ncp)->stdplane == ncp){
|
|
logerror("Won't destroy standard plane\n");
|
|
return -1;
|
|
}
|
|
//notcurses_debug(ncplane_notcurses(ncp), stderr);
|
|
loginfo("Destroying %dx%d plane \"%s\" @ %dx%d\n",
|
|
ncp->leny, ncp->lenx, ncp->name ? ncp->name : NULL, ncp->absy, ncp->absx);
|
|
int ret = 0;
|
|
// dissolve our binding from behind (->bprev is either NULL, or its
|
|
// predecessor on the bound list's ->bnext, or &ncp->boundto->blist)
|
|
if(ncp->bprev){
|
|
if( (*ncp->bprev = ncp->bnext) ){
|
|
ncp->bnext->bprev = ncp->bprev;
|
|
}
|
|
}
|
|
// recursively reparent our children to the plane to which we are bound.
|
|
// this will extract each one from the sibling list.
|
|
struct ncplane* bound = ncp->blist;
|
|
while(bound){
|
|
struct ncplane* tmp = bound->bnext;
|
|
if(ncplane_reparent_family(bound, ncp->boundto) == NULL){
|
|
ret = -1;
|
|
}
|
|
bound = tmp;
|
|
}
|
|
// extract ourselves from the z-axis. do this *after* reparenting, in case
|
|
// reparenting shifts up the z-axis somehow (though i don't think it can,
|
|
// at least not within a pile?).
|
|
if(ncp->above){
|
|
ncp->above->below = ncp->below;
|
|
}else{
|
|
ncplane_pile(ncp)->top = ncp->below;
|
|
}
|
|
if(ncp->below){
|
|
ncp->below->above = ncp->above;
|
|
}else{
|
|
ncplane_pile(ncp)->bottom = ncp->above;
|
|
}
|
|
free_plane(ncp);
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_destroy_family(ncplane *ncp){
|
|
if(ncp == NULL){
|
|
return 0;
|
|
}
|
|
if(ncplane_notcurses(ncp)->stdplane == ncp){
|
|
logerror("Won't destroy standard plane\n");
|
|
return -1;
|
|
}
|
|
int ret = 0;
|
|
while(ncp->blist){
|
|
ret |= ncplane_destroy_family(ncp->blist);
|
|
}
|
|
ret |= ncplane_destroy(ncp);
|
|
return ret;
|
|
}
|
|
|
|
// only invoked without suppress banners flag. prints various warnings based on
|
|
// the environment / terminal definition. returns the number of lines printed.
|
|
static int
|
|
init_banner_warnings(const notcurses* nc, fbuf* f){
|
|
term_fg_palindex(nc, f, nc->tcache.caps.colors <= 88 ? 1 : 0xcb);
|
|
if(!notcurses_canutf8(nc)){
|
|
fbuf_puts(f, " Warning! Encoding is not UTF-8; output may be degraded.\n");
|
|
}
|
|
if(!get_escape(&nc->tcache, ESCAPE_HPA)){
|
|
fbuf_puts(f, " Warning! No absolute horizontal placement.\n");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// unless the suppress_banner flag was set, print some version information and
|
|
// (if applicable) warnings to ttyfp. we are not yet on the alternate screen.
|
|
static int
|
|
init_banner(const notcurses* nc, fbuf* f){
|
|
if(!nc->suppress_banner){
|
|
char prefixbuf[BPREFIXSTRLEN + 1];
|
|
term_fg_palindex(nc, f, 50 % nc->tcache.caps.colors);
|
|
fbuf_printf(f, "notcurses %s on %s %s\n", notcurses_version(),
|
|
nc->tcache.termname ? nc->tcache.termname : "?",
|
|
nc->tcache.termversion ? nc->tcache.termversion : "");
|
|
term_fg_palindex(nc, f, nc->tcache.caps.colors <= 256 ?
|
|
14 % nc->tcache.caps.colors : 0x2080e0);
|
|
if(nc->tcache.cellpixy && nc->tcache.cellpixx){
|
|
fbuf_printf(f, "%d rows (%dpx) %d cols (%dpx) %dx%d ",
|
|
nc->stdplane->leny, nc->tcache.cellpixy,
|
|
nc->stdplane->lenx, nc->tcache.cellpixx,
|
|
nc->stdplane->leny * nc->tcache.cellpixy,
|
|
nc->stdplane->lenx * nc->tcache.cellpixx);
|
|
}else{
|
|
fbuf_printf(f, "%d rows %d cols (%sB) ",
|
|
nc->stdplane->leny, nc->stdplane->lenx,
|
|
bprefix(nc->stats.s.fbbytes, 1, prefixbuf, 0));
|
|
}
|
|
const char* setaf;
|
|
if(nc->tcache.caps.rgb && (setaf = get_escape(&nc->tcache, ESCAPE_SETAF))){
|
|
term_fg_rgb8(&nc->tcache, f, 0xe0, 0x60, 0x60);
|
|
fbuf_putc(f, 'r');
|
|
term_fg_rgb8(&nc->tcache, f, 0x60, 0xe0, 0x60);
|
|
fbuf_putc(f, 'g');
|
|
term_fg_rgb8(&nc->tcache, f, 0x20, 0x80, 0xff);
|
|
fbuf_putc(f, 'b');
|
|
term_fg_palindex(nc, f, nc->tcache.caps.colors <= 256 ?
|
|
14 % nc->tcache.caps.colors : 0x2080e0);
|
|
fbuf_putc(f, '+');
|
|
}
|
|
fbuf_printf(f, "%u colors\n%s%s (%s)\nterminfo from %s zlib %s\n",
|
|
nc->tcache.caps.colors,
|
|
#ifdef __clang__
|
|
"", // name is contained in __VERSION__
|
|
#else
|
|
#ifdef __GNUC__
|
|
"gcc-",
|
|
#else
|
|
#error "Unknown compiler"
|
|
#endif
|
|
#endif
|
|
__VERSION__,
|
|
#ifdef __BYTE_ORDER__
|
|
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
|
|
"LE",
|
|
#else
|
|
"BE",
|
|
#endif
|
|
#else
|
|
#error "No __BYTE_ORDER__ definition"
|
|
#endif
|
|
curses_version(), zlibVersion());
|
|
ncvisual_printbanner(f);
|
|
init_banner_warnings(nc, f);
|
|
const char* esc;
|
|
if( (esc = get_escape(&nc->tcache, ESCAPE_SGR0)) ||
|
|
(esc = get_escape(&nc->tcache, ESCAPE_OP))){
|
|
fbuf_emit(f, esc);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// it's critical that we're using UTF-8 encoding if at all possible. since the
|
|
// client might not have called setlocale(2) (if they weren't reading the
|
|
// directions...), go ahead and try calling setlocale(LC_ALL, "") and then
|
|
// setlocale(LC_CTYPE, "C.UTF-8") ourselves *iff* we're not using UTF-8 *and*
|
|
// LANG is not explicitly set to "C" nor "POSIX". this still requires the user
|
|
// to have a proper locale generated and available on disk. either way, they're
|
|
// going to get a diagnostic (unless the user has explicitly configured a LANG
|
|
// of "C" or "POSIX"). recommended practice is for the client code to have
|
|
// called setlocale() themselves, and set the NCOPTION_INHIBIT_SETLOCALE flag.
|
|
// if that flag is set, we take the locale and encoding as we get them.
|
|
void init_lang(void){
|
|
const char* encoding = nl_langinfo(CODESET);
|
|
if(encoding && !strcmp(encoding, "UTF-8")){
|
|
return; // already utf-8, great!
|
|
}
|
|
const char* lang = getenv("LANG");
|
|
// if LANG was explicitly set to C/POSIX, life sucks, roll with it
|
|
if(lang && (!strcmp(lang, "C") || !strcmp(lang, "POSIX"))){
|
|
loginfo("LANG was explicitly set to %s, not changing locale\n", lang);
|
|
return;
|
|
}
|
|
setlocale(LC_ALL, "");
|
|
encoding = nl_langinfo(CODESET);
|
|
if(encoding && !strcmp(encoding, "UTF-8")){
|
|
loginfo("Set locale from LANG; client should call setlocale(2)!\n");
|
|
return;
|
|
}
|
|
setlocale(LC_CTYPE, "C.UTF-8");
|
|
encoding = nl_langinfo(CODESET);
|
|
if(encoding && !strcmp(encoding, "UTF-8")){
|
|
loginfo("Forced UTF-8 encoding; client should call setlocale(2)!\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
// initialize a recursive mutex lock in a way that works on both glibc + musl
|
|
static int
|
|
recursive_lock_init(pthread_mutex_t *lock){
|
|
#ifndef __GLIBC__
|
|
#define PTHREAD_MUTEX_RECURSIVE_NP PTHREAD_MUTEX_RECURSIVE
|
|
#endif
|
|
pthread_mutexattr_t attr;
|
|
if(pthread_mutexattr_init(&attr)){
|
|
return -1;
|
|
}
|
|
if(pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP)){
|
|
pthread_mutexattr_destroy(&attr);
|
|
return -1;
|
|
}
|
|
if(pthread_mutex_init(lock, &attr)){
|
|
pthread_mutexattr_destroy(&attr);
|
|
return -1;
|
|
}
|
|
pthread_mutexattr_destroy(&attr);
|
|
return 0;
|
|
#ifndef __GLIBC__
|
|
#undef PTHREAD_MUTEX_RECURSIVE_NP
|
|
#endif
|
|
}
|
|
|
|
int notcurses_check_pixel_support(const notcurses* nc){
|
|
if(nc->tcache.pixel_draw || nc->tcache.pixel_draw_late){
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// FIXME cut this up into a few distinct pieces, yearrrgh
|
|
notcurses* notcurses_core_init(const notcurses_options* opts, FILE* outfp){
|
|
if(outfp == NULL){
|
|
outfp = stdout;
|
|
}
|
|
notcurses_options defaultopts = { };
|
|
if(!opts){
|
|
opts = &defaultopts;
|
|
}
|
|
if(opts->margin_t < 0 || opts->margin_b < 0 || opts->margin_l < 0 || opts->margin_r < 0){
|
|
fprintf(stderr, "Provided an illegal negative margin, refusing to start\n");
|
|
return NULL;
|
|
}
|
|
if(opts->flags >= (NCOPTION_NO_FONT_CHANGES << 1u)){
|
|
fprintf(stderr, "Warning: unknown Notcurses options %016" PRIu64 "\n", opts->flags);
|
|
}
|
|
notcurses* ret = malloc(sizeof(*ret));
|
|
if(ret == NULL){
|
|
return ret;
|
|
}
|
|
ret->last_pile = NULL;
|
|
ret->rstate.f.buf = NULL;
|
|
ret->rstate.f.used = 0;
|
|
ret->rstate.f.size = 0;
|
|
ret->loglevel = opts->loglevel;
|
|
if(!(opts->flags & NCOPTION_INHIBIT_SETLOCALE)){
|
|
init_lang();
|
|
}
|
|
const char* encoding = nl_langinfo(CODESET);
|
|
bool utf8;
|
|
if(encoding && !strcmp(encoding, "UTF-8")){
|
|
utf8 = true;
|
|
}else if(encoding && (!strcmp(encoding, "ANSI_X3.4-1968") ||
|
|
!strcmp(encoding, "US-ASCII") ||
|
|
!strcmp(encoding, "ASCII"))){
|
|
utf8 = false;
|
|
}else{
|
|
fprintf(stderr, "Encoding (\"%s\") was neither ANSI_X3.4-1968 nor UTF-8, refusing to start\n Did you call setlocale()?\n",
|
|
encoding ? encoding : "none found");
|
|
return NULL;
|
|
}
|
|
ret->flags = opts->flags;
|
|
ret->margin_t = opts->margin_t;
|
|
ret->margin_b = opts->margin_b;
|
|
ret->margin_l = opts->margin_l;
|
|
ret->margin_r = opts->margin_r;
|
|
ret->cursory = ret->cursorx = -1;
|
|
reset_stats(&ret->stats.s);
|
|
reset_stats(&ret->stashed_stats);
|
|
ret->ttyfp = outfp;
|
|
memset(&ret->rstate, 0, sizeof(ret->rstate));
|
|
memset(&ret->palette_damage, 0, sizeof(ret->palette_damage));
|
|
memset(&ret->palette, 0, sizeof(ret->palette));
|
|
ret->lastframe = NULL;
|
|
ret->lfdimy = 0;
|
|
ret->lfdimx = 0;
|
|
egcpool_init(&ret->pool);
|
|
if((ret->loglevel = opts->loglevel) > NCLOGLEVEL_TRACE || ret->loglevel < NCLOGLEVEL_SILENT){
|
|
fprintf(stderr, "Invalid loglevel %d\n", ret->loglevel);
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
if(recursive_lock_init(&ret->pilelock)){
|
|
logfatal("Couldn't initialize pile mutex\n");
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
if(pthread_mutex_init(&ret->stats.lock, NULL)){
|
|
pthread_mutex_destroy(&ret->pilelock);
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
// the fbuf is needed by notcurses_stop_minimal, so this must be done
|
|
// before registering fatal signal handlers.
|
|
if(fbuf_init(&ret->rstate.f)){
|
|
pthread_mutex_destroy(&ret->pilelock);
|
|
pthread_mutex_destroy(&ret->stats.lock);
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
if(setup_signals(ret, (opts->flags & NCOPTION_NO_QUIT_SIGHANDLERS),
|
|
(opts->flags & NCOPTION_NO_WINCH_SIGHANDLER),
|
|
notcurses_stop_minimal)){
|
|
fbuf_free(&ret->rstate.f);
|
|
pthread_mutex_destroy(&ret->pilelock);
|
|
pthread_mutex_destroy(&ret->stats.lock);
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
// don't set loglevel until we've acquired the signal handler, lest we
|
|
// change the loglevel out from under a running instance
|
|
loglevel = opts->loglevel;
|
|
ret->rstate.logendy = -1;
|
|
ret->rstate.logendx = -1;
|
|
ret->rstate.x = ret->rstate.y = -1;
|
|
ret->suppress_banner = opts->flags & NCOPTION_SUPPRESS_BANNERS;
|
|
int fakecursory, fakecursorx;
|
|
int* cursory = opts->flags & NCOPTION_PRESERVE_CURSOR ?
|
|
&ret->rstate.logendy : &fakecursory;
|
|
int* cursorx = opts->flags & NCOPTION_PRESERVE_CURSOR ?
|
|
&ret->rstate.logendx : &fakecursorx;
|
|
if(interrogate_terminfo(&ret->tcache, opts->termtype, ret->ttyfp, utf8,
|
|
opts->flags & NCOPTION_NO_ALTERNATE_SCREEN, 0,
|
|
opts->flags & NCOPTION_NO_FONT_CHANGES,
|
|
cursory, cursorx, &ret->stats)){
|
|
goto err;
|
|
}
|
|
if((opts->flags & NCOPTION_PRESERVE_CURSOR) || !ret->suppress_banner){
|
|
// the u7 led the queries so that we would get a cursor position
|
|
// unaffected by any query spill (unconsumed control sequences). move
|
|
// us back to that location, in case there was any such spillage.
|
|
if(goto_location(ret, &ret->rstate.f, *cursory, *cursorx)){
|
|
goto err;
|
|
}
|
|
}
|
|
int dimy, dimx;
|
|
if(update_term_dimensions(&dimy, &dimx, &ret->tcache, ret->margin_b)){
|
|
goto err;
|
|
}
|
|
if(ncvisual_init(ret->loglevel)){
|
|
goto err;
|
|
}
|
|
ret->stdplane = NULL;
|
|
if((ret->stdplane = create_initial_ncplane(ret, dimy, dimx)) == NULL){
|
|
logpanic("Couldn't create the initial plane (bad margins?)\n");
|
|
goto err;
|
|
}
|
|
reset_term_attributes(&ret->tcache, &ret->rstate.f);
|
|
const char* cinvis = get_escape(&ret->tcache, ESCAPE_CIVIS);
|
|
if(cinvis && term_emit(cinvis, ret->ttyfp, false)){
|
|
free_plane(ret->stdplane);
|
|
goto err;
|
|
}
|
|
const char* pushcolors = get_escape(&ret->tcache, ESCAPE_SAVECOLORS);
|
|
if(pushcolors && term_emit(pushcolors, ret->ttyfp, false)){
|
|
free_plane(ret->stdplane);
|
|
goto err;
|
|
}
|
|
init_banner(ret, &ret->rstate.f);
|
|
fwrite(ret->rstate.f.buf, ret->rstate.f.used, 1, ret->ttyfp);
|
|
fbuf_reset(&ret->rstate.f);
|
|
if(ncflush(ret->ttyfp)){
|
|
free_plane(ret->stdplane);
|
|
goto err;
|
|
}
|
|
if(ret->rstate.logendy >= 0){ // if either is set, both are
|
|
if(!ret->suppress_banner && ret->tcache.ttyfd >= 0){
|
|
if(locate_cursor(&ret->tcache, &ret->rstate.logendy, &ret->rstate.logendx)){
|
|
free_plane(ret->stdplane);
|
|
goto err;
|
|
}
|
|
}
|
|
if(opts->flags & NCOPTION_PRESERVE_CURSOR){
|
|
ncplane_cursor_move_yx(ret->stdplane, ret->rstate.logendy, ret->rstate.logendx);
|
|
}
|
|
}
|
|
if(set_fd_nonblocking(ret->tcache.input.infd, 1, &ret->stdio_blocking_save)){
|
|
goto err;
|
|
}
|
|
// if not connected to an actual terminal, we're not going to try entering
|
|
// the alternate screen; we're not even going to bother clearing the screen.
|
|
if(ret->tcache.ttyfd >= 0){
|
|
if(!(opts->flags & NCOPTION_NO_ALTERNATE_SCREEN)){
|
|
const char* smcup = get_escape(&ret->tcache, ESCAPE_SMCUP);
|
|
if(smcup){
|
|
if(enter_alternate_screen(ret->ttyfp, &ret->tcache, false)){
|
|
free_plane(ret->stdplane);
|
|
goto err;
|
|
}
|
|
}
|
|
// perform an explicit clear since the alternate screen was requested
|
|
// (smcup *might* clear, but who knows? and it might not have been
|
|
// available in any case).
|
|
if(clear_and_home(ret, &ret->tcache, &ret->rstate.f)){
|
|
goto err;
|
|
}
|
|
// no need to reestablish a preserved cursor -- that only affects the
|
|
// standard plane, not the physical cursor that was just disrupted.
|
|
}
|
|
}
|
|
// the sprite clear ought take place within the alternate screen, if it's
|
|
// being used.
|
|
if(!(opts->flags & NCOPTION_NO_CLEAR_BITMAPS)){
|
|
if(sprite_clear_all(&ret->tcache, &ret->rstate.f)){
|
|
goto err;
|
|
}
|
|
}
|
|
if(ret->rstate.f.used){
|
|
fwrite(ret->rstate.f.buf, ret->rstate.f.used, 1, ret->ttyfp);
|
|
fbuf_reset(&ret->rstate.f);
|
|
if(ncflush(ret->ttyfp)){
|
|
goto err;
|
|
}
|
|
}
|
|
return ret;
|
|
|
|
err:
|
|
logpanic("Alas, you will not be going to space today.\n");
|
|
// FIXME looks like we have some memory leaks on this error path?
|
|
fbuf_free(&ret->rstate.f);
|
|
tcsetattr(ret->tcache.ttyfd, TCSANOW, &ret->tcache.tpreserved);
|
|
drop_signals(ret);
|
|
del_curterm(cur_term);
|
|
pthread_mutex_destroy(&ret->stats.lock);
|
|
pthread_mutex_destroy(&ret->pilelock);
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
|
|
// updates *pile to point at (*pile)->next, frees all but standard pile/plane
|
|
static void
|
|
ncpile_drop(notcurses* nc, ncpile** pile){
|
|
bool sawstdplane = false;
|
|
ncpile* next = (*pile)->next;
|
|
ncplane* p = (*pile)->top;
|
|
while(p){
|
|
ncplane* tmp = p->below;
|
|
if(nc->stdplane != p){
|
|
free_plane(p);
|
|
}else{
|
|
sawstdplane = true;
|
|
}
|
|
p = tmp;
|
|
}
|
|
*pile = next;
|
|
if(sawstdplane){
|
|
ncplane_pile(nc->stdplane)->top = nc->stdplane;
|
|
ncplane_pile(nc->stdplane)->bottom = nc->stdplane;
|
|
nc->stdplane->above = nc->stdplane->below = NULL;
|
|
nc->stdplane->blist = NULL;
|
|
}
|
|
}
|
|
|
|
// drop all piles and all planes, save the standard plane and its pile
|
|
void notcurses_drop_planes(notcurses* nc){
|
|
pthread_mutex_lock(&nc->pilelock);
|
|
ncpile* p = ncplane_pile(nc->stdplane);
|
|
ncpile* p0 = p;
|
|
do{
|
|
ncpile_drop(nc, &p);
|
|
}while(p0 != p);
|
|
pthread_mutex_unlock(&nc->pilelock);
|
|
}
|
|
|
|
int notcurses_stop(notcurses* nc){
|
|
int ret = 0;
|
|
if(nc){
|
|
ret |= notcurses_stop_minimal(nc);
|
|
// if we were not using the alternate screen, our cursor's wherever we last
|
|
// wrote. move it to the bottom left of the screen, *unless*
|
|
// PRESERVE_CURSOR was used, which is a bit more complex.
|
|
if((nc->flags & NCOPTION_PRESERVE_CURSOR) || !get_escape(&nc->tcache, ESCAPE_SMCUP)){
|
|
int targy = nc->rstate.logendy;
|
|
if(++targy >= nc->lfdimy){
|
|
printf("\n");
|
|
--targy;
|
|
}
|
|
fbuf_reset(&nc->rstate.f);
|
|
goto_location(nc, &nc->rstate.f, targy, 0);
|
|
fbuf_finalize(&nc->rstate.f, stdout);
|
|
}
|
|
ret |= set_fd_nonblocking(nc->tcache.input.infd, nc->stdio_blocking_save, NULL);
|
|
if(nc->stdplane){
|
|
notcurses_drop_planes(nc);
|
|
free_plane(nc->stdplane);
|
|
}
|
|
if(nc->tcache.ttyfd >= 0){
|
|
ret |= close(nc->tcache.ttyfd);
|
|
}
|
|
egcpool_dump(&nc->pool);
|
|
free(nc->lastframe);
|
|
// get any current stats loaded into stash_stats
|
|
notcurses_stats_reset(nc, NULL);
|
|
if(!nc->suppress_banner){
|
|
summarize_stats(nc);
|
|
}
|
|
#ifndef __MINGW64__
|
|
del_curterm(cur_term);
|
|
#endif
|
|
ret |= pthread_mutex_destroy(&nc->stats.lock);
|
|
ret |= pthread_mutex_destroy(&nc->pilelock);
|
|
free_terminfo_cache(&nc->tcache);
|
|
free(nc);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
uint64_t ncplane_channels(const ncplane* n){
|
|
return n->channels;
|
|
}
|
|
|
|
uint16_t ncplane_styles(const ncplane* n){
|
|
return n->stylemask;
|
|
}
|
|
|
|
void ncplane_set_channels(ncplane* n, uint64_t channels){
|
|
n->channels = channels;
|
|
}
|
|
|
|
void ncplane_set_fg_default(ncplane* n){
|
|
ncchannels_set_fg_default(&n->channels);
|
|
}
|
|
|
|
uint64_t ncplane_set_fchannel(ncplane* n, uint32_t channel){
|
|
return ncchannels_set_fchannel(&n->channels, channel);
|
|
}
|
|
|
|
uint64_t ncplane_set_bchannel(ncplane* n, uint32_t channel){
|
|
return ncchannels_set_bchannel(&n->channels, channel);
|
|
}
|
|
|
|
void ncplane_set_bg_default(ncplane* n){
|
|
ncchannels_set_bg_default(&n->channels);
|
|
}
|
|
|
|
void ncplane_set_bg_rgb8_clipped(ncplane* n, int r, int g, int b){
|
|
ncchannels_set_bg_rgb8_clipped(&n->channels, r, g, b);
|
|
}
|
|
|
|
int ncplane_set_bg_rgb8(ncplane* n, unsigned r, unsigned g, unsigned b){
|
|
return ncchannels_set_bg_rgb8(&n->channels, r, g, b);
|
|
}
|
|
|
|
void ncplane_set_fg_rgb8_clipped(ncplane* n, int r, int g, int b){
|
|
ncchannels_set_fg_rgb8_clipped(&n->channels, r, g, b);
|
|
}
|
|
|
|
int ncplane_set_fg_rgb8(ncplane* n, unsigned r, unsigned g, unsigned b){
|
|
return ncchannels_set_fg_rgb8(&n->channels, r, g, b);
|
|
}
|
|
|
|
int ncplane_set_fg_rgb(ncplane* n, unsigned channel){
|
|
return ncchannels_set_fg_rgb(&n->channels, channel);
|
|
}
|
|
|
|
int ncplane_set_bg_rgb(ncplane* n, unsigned channel){
|
|
return ncchannels_set_bg_rgb(&n->channels, channel);
|
|
}
|
|
|
|
int ncplane_set_fg_alpha(ncplane* n, int alpha){
|
|
return ncchannels_set_fg_alpha(&n->channels, alpha);
|
|
}
|
|
|
|
int ncplane_set_bg_alpha(ncplane *n, int alpha){
|
|
return ncchannels_set_bg_alpha(&n->channels, alpha);
|
|
}
|
|
|
|
int ncplane_set_fg_palindex(ncplane* n, int idx){
|
|
return ncchannels_set_fg_palindex(&n->channels, idx);
|
|
}
|
|
|
|
int ncplane_set_bg_palindex(ncplane* n, int idx){
|
|
return ncchannels_set_bg_palindex(&n->channels, idx);
|
|
}
|
|
|
|
int ncplane_set_base_cell(ncplane* ncp, const nccell* c){
|
|
if(nccell_wide_right_p(c)){
|
|
return -1;
|
|
}
|
|
return nccell_duplicate(ncp, &ncp->basecell, c);
|
|
}
|
|
|
|
int ncplane_set_base(ncplane* ncp, const char* egc, uint32_t stylemask, uint64_t channels){
|
|
return nccell_prime(ncp, &ncp->basecell, egc, stylemask, channels);
|
|
}
|
|
|
|
int ncplane_base(ncplane* ncp, nccell* c){
|
|
return nccell_duplicate(ncp, c, &ncp->basecell);
|
|
}
|
|
|
|
const char* nccell_extended_gcluster(const ncplane* n, const nccell* c){
|
|
if(cell_simple_p(c)){
|
|
return (const char*)&c->gcluster;
|
|
}
|
|
return egcpool_extended_gcluster(&n->pool, c);
|
|
}
|
|
|
|
const char* cell_extended_gcluster(const struct ncplane* n, const nccell* c){
|
|
return nccell_extended_gcluster(n, c);
|
|
}
|
|
|
|
// 'n' ends up above 'above'
|
|
int ncplane_move_above(ncplane* restrict n, ncplane* restrict above){
|
|
if(n == above){
|
|
return -1;
|
|
}
|
|
if(ncplane_pile(n) != ncplane_pile(above)){ // can't move among piles
|
|
return -1;
|
|
}
|
|
if(n->below != above){
|
|
// splice out 'n'
|
|
if(n->below){
|
|
n->below->above = n->above;
|
|
}else{
|
|
ncplane_pile(n)->bottom = n->above;
|
|
}
|
|
if(n->above){
|
|
n->above->below = n->below;
|
|
}else{
|
|
ncplane_pile(n)->top = n->below;
|
|
}
|
|
if( (n->above = above->above) ){
|
|
above->above->below = n;
|
|
}else{
|
|
ncplane_pile(n)->top = n;
|
|
}
|
|
above->above = n;
|
|
n->below = above;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// 'n' ends up below 'below'
|
|
int ncplane_move_below(ncplane* restrict n, ncplane* restrict below){
|
|
if(n == below){
|
|
return -1;
|
|
}
|
|
if(ncplane_pile(n) != ncplane_pile(below)){ // can't move among piles
|
|
return -1;
|
|
}
|
|
if(n->above != below){
|
|
if(n->below){
|
|
n->below->above = n->above;
|
|
}else{
|
|
ncplane_pile(n)->bottom = n->above;
|
|
}
|
|
if(n->above){
|
|
n->above->below = n->below;
|
|
}else{
|
|
ncplane_pile(n)->top = n->below;
|
|
}
|
|
if( (n->below = below->below) ){
|
|
below->below->above = n;
|
|
}else{
|
|
ncplane_pile(n)->bottom = n;
|
|
}
|
|
below->below = n;
|
|
n->above = below;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void ncplane_move_top(ncplane* n){
|
|
if(n->above){
|
|
if( (n->above->below = n->below) ){
|
|
n->below->above = n->above;
|
|
}else{
|
|
ncplane_pile(n)->bottom = n->above;
|
|
}
|
|
n->above = NULL;
|
|
if( (n->below = ncplane_pile(n)->top) ){
|
|
n->below->above = n;
|
|
}
|
|
ncplane_pile(n)->top = n;
|
|
}
|
|
}
|
|
|
|
void ncplane_move_bottom(ncplane* n){
|
|
if(n->below){
|
|
if( (n->below->above = n->above) ){
|
|
n->above->below = n->below;
|
|
}else{
|
|
ncplane_pile(n)->top = n->below;
|
|
}
|
|
n->below = NULL;
|
|
if( (n->above = ncplane_pile(n)->bottom) ){
|
|
n->above->below = n;
|
|
}
|
|
ncplane_pile(n)->bottom = n;
|
|
}
|
|
}
|
|
|
|
void ncplane_cursor_yx(const ncplane* n, int* y, int* x){
|
|
if(y){
|
|
*y = n->y;
|
|
}
|
|
if(x){
|
|
*x = n->x;
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
nccell_obliterate(ncplane* n, nccell* c){
|
|
nccell_release(n, c);
|
|
nccell_init(c);
|
|
}
|
|
|
|
// increment y by 1 and rotate the framebuffer up one line. x moves to 0. any
|
|
// non-fixed bound planes move up 1 line if they intersect the plane.
|
|
void scroll_down(ncplane* n){
|
|
//fprintf(stderr, "pre-scroll: %d/%d %d/%d log: %d scrolling: %u\n", n->y, n->x, n->leny, n->lenx, n->logrow, n->scrolling);
|
|
n->x = 0;
|
|
if(n->y == n->leny - 1){
|
|
if(n == notcurses_stdplane(ncplane_notcurses(n))){
|
|
ncplane_pile(n)->scrolls++;
|
|
}
|
|
n->logrow = (n->logrow + 1) % n->leny;
|
|
nccell* row = n->fb + nfbcellidx(n, n->y, 0);
|
|
for(int clearx = 0 ; clearx < n->lenx ; ++clearx){
|
|
nccell_release(n, &row[clearx]);
|
|
}
|
|
memset(row, 0, sizeof(*row) * n->lenx);
|
|
}else{
|
|
++n->y;
|
|
}
|
|
for(struct ncplane* c = n->blist ; c ; c = c->bnext){
|
|
if(!c->fixedbound){
|
|
if(ncplanes_intersect_p(n, c)){
|
|
ncplane_moverel(c, -1, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int ncplane_scrollup(ncplane* n, int r){
|
|
if(!ncplane_scrolling_p(n)){
|
|
logerror("can't scroll %d on non-scrolling plane\n", r);
|
|
return -1;
|
|
}
|
|
if(r < 0){
|
|
logerror("can't scroll %d lines\n", r);
|
|
return -1;
|
|
}
|
|
while(r-- > 0){
|
|
scroll_down(n);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// Scroll |n| up until |child| is no longer hidden beneath it. Returns an
|
|
// error if |child| is not a child of |n|, or |n| is not scrolling, or |child|
|
|
// is fixed. Returns the number of scrolling events otherwise (might be 0).
|
|
int ncplane_scrollup_child(ncplane* n, const ncplane* child){
|
|
if(ncplane_parent_const(child) != n){
|
|
logerror("not a child of specified plane\n");
|
|
return -1;
|
|
}
|
|
if(child->fixedbound){
|
|
logerror("child plane is fixed\n");
|
|
return -1;
|
|
}
|
|
int parend = ncplane_abs_y(n) + ncplane_dim_y(n); // where parent ends
|
|
int chend = ncplane_abs_y(child) + ncplane_dim_y(child); // where child ends
|
|
if(chend <= parend){
|
|
return 0;
|
|
}
|
|
int r = chend - parend; // how many rows we need scroll parent
|
|
int ret = ncplane_scrollup(n, r);
|
|
return ret;
|
|
}
|
|
|
|
int nccell_width(const ncplane* n __attribute__ ((unused)), const nccell* c){
|
|
return nccell_cols(c);
|
|
}
|
|
|
|
int nccell_load(ncplane* n, nccell* c, const char* gcluster){
|
|
int cols;
|
|
int bytes = utf8_egc_len(gcluster, &cols);
|
|
return pool_load_direct(&n->pool, c, gcluster, bytes, cols);
|
|
}
|
|
|
|
int cell_load(ncplane* n, nccell* c, const char* gcluster){
|
|
return nccell_load(n, c, gcluster);
|
|
}
|
|
|
|
// where the magic happens. write the single EGC completely described by |egc|,
|
|
// occupying |cols| columns, to the ncplane |n| at the coordinate |y|, |x|. if
|
|
// either or both of |y|/|x| is -1, the current cursor location for that
|
|
// dimension will be used. if the glyph cannot fit on the current line, it is
|
|
// an error unless scrolling is enabled.
|
|
static inline int
|
|
ncplane_put(ncplane* n, int y, int x, const char* egc, int cols,
|
|
uint16_t stylemask, uint64_t channels, int bytes){
|
|
if(n->sprite){
|
|
logerror("Can't write [%s] to sprixelated plane\n", egc);
|
|
return -1;
|
|
}
|
|
// reject any control character for output other than newline (and then only
|
|
// on a scrolling plane).
|
|
if(*egc == '\n'){
|
|
if(!n->scrolling){
|
|
logerror("Rejecting newline on non-scrolling plane\n");
|
|
return -1;
|
|
}
|
|
}else if(is_control_egc((const unsigned char*)egc, bytes)){
|
|
logerror("Rejecting %dB control character\n", bytes);
|
|
return -1;
|
|
}
|
|
// check *before ncplane_cursor_move_yx()* whether we're past the end of the
|
|
// line. if scrolling is enabled, move to the next line if so. if x or y are
|
|
// specified, we must always try to print at exactly that location.
|
|
if(x != -1){
|
|
if(x + cols > n->lenx){
|
|
logerror("Target x %d + %d cols [%.*s] > length %d\n", x, cols, bytes, egc, n->lenx);
|
|
ncplane_cursor_move_yx(n, y, x); // update cursor, though
|
|
return -1;
|
|
}
|
|
}else if(y == -1 && n->x + cols > n->lenx){
|
|
if(!n->scrolling){
|
|
logerror("No room to output [%.*s] %d/%d\n", bytes, egc, n->y, n->x);
|
|
return -1;
|
|
}
|
|
scroll_down(n);
|
|
}
|
|
if(ncplane_cursor_move_yx(n, y, x)){
|
|
return -1;
|
|
}
|
|
if(*egc == '\n'){
|
|
scroll_down(n);
|
|
return 0;
|
|
}
|
|
// A wide character obliterates anything to its immediate right (and marks
|
|
// that cell as wide). Any character placed atop one cell of a wide character
|
|
// obliterates all cells. Note that a two-cell glyph can thus obliterate two
|
|
// other two-cell glyphs, totalling four columns.
|
|
nccell* targ = ncplane_cell_ref_yx(n, n->y, n->x);
|
|
// we're always starting on the leftmost cell of our output glyph. check the
|
|
// target, and find the leftmost cell of the glyph it will be displacing.
|
|
// obliterate as we go along.
|
|
int idx = n->x;
|
|
nccell* lmc = targ;
|
|
while(nccell_wide_right_p(lmc)){
|
|
nccell_obliterate(n, &n->fb[nfbcellidx(n, n->y, idx)]);
|
|
lmc = ncplane_cell_ref_yx(n, n->y, --idx);
|
|
}
|
|
// we're now on the leftmost cell of the target glyph.
|
|
int twidth = nccell_cols(lmc);
|
|
nccell_release(n, lmc);
|
|
twidth -= n->x - idx;
|
|
while(--twidth > 0){
|
|
nccell_obliterate(n, &n->fb[nfbcellidx(n, n->y, n->x + twidth)]);
|
|
}
|
|
targ->stylemask = stylemask;
|
|
targ->channels = channels;
|
|
if(cell_load_direct(n, targ, egc, bytes, cols) < 0){
|
|
return -1;
|
|
}
|
|
//fprintf(stderr, "%08x %016lx %c %d %d\n", targ->gcluster, targ->channels, nccell_double_wide_p(targ) ? 'D' : 'd', bytes, cols);
|
|
// must set our right hand sides wide, and check for further damage
|
|
++n->x;
|
|
for(int i = 1 ; i < cols ; ++i){
|
|
nccell* candidate = &n->fb[nfbcellidx(n, n->y, n->x)];
|
|
int off = nccell_cols(candidate);
|
|
nccell_release(n, &n->fb[nfbcellidx(n, n->y, n->x)]);
|
|
while(--off > 0){
|
|
nccell_obliterate(n, &n->fb[nfbcellidx(n, n->y, n->x + off)]);
|
|
}
|
|
candidate->channels = targ->channels;
|
|
candidate->stylemask = targ->stylemask;
|
|
candidate->width = targ->width;
|
|
++n->x;
|
|
}
|
|
return cols;
|
|
}
|
|
|
|
int ncplane_putc_yx(ncplane* n, int y, int x, const nccell* c){
|
|
const int cols = nccell_cols(c);
|
|
const char* egc = nccell_extended_gcluster(n, c);
|
|
return ncplane_put(n, y, x, egc, cols, c->stylemask, c->channels, strlen(egc));
|
|
}
|
|
|
|
int ncplane_putegc_yx(ncplane* n, int y, int x, const char* gclust, int* sbytes){
|
|
int cols;
|
|
int bytes = utf8_egc_len(gclust, &cols);
|
|
if(bytes < 0){
|
|
return -1;
|
|
}
|
|
if(sbytes){
|
|
*sbytes = bytes;
|
|
}
|
|
//fprintf(stderr, "cols: %d wcs: %d\n", cols, bytes);
|
|
return ncplane_put(n, y, x, gclust, cols, n->stylemask, n->channels, bytes);
|
|
}
|
|
|
|
int ncplane_putchar_stained(ncplane* n, char c){
|
|
uint64_t channels = n->channels;
|
|
uint32_t stylemask = n->stylemask;
|
|
const nccell* targ = &n->fb[nfbcellidx(n, n->y, n->x)];
|
|
n->channels = targ->channels;
|
|
n->stylemask = targ->stylemask;
|
|
int ret = ncplane_putchar(n, c);
|
|
n->channels = channels;
|
|
n->stylemask = stylemask;
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_putwegc_stained(ncplane* n, const wchar_t* gclust, int* sbytes){
|
|
uint64_t channels = n->channels;
|
|
uint32_t stylemask = n->stylemask;
|
|
const nccell* targ = &n->fb[nfbcellidx(n, n->y, n->x)];
|
|
n->channels = targ->channels;
|
|
n->stylemask = targ->stylemask;
|
|
int ret = ncplane_putwegc(n, gclust, sbytes);
|
|
n->channels = channels;
|
|
n->stylemask = stylemask;
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_putegc_stained(ncplane* n, const char* gclust, int* sbytes){
|
|
uint64_t channels = n->channels;
|
|
uint32_t stylemask = n->stylemask;
|
|
const nccell* targ = &n->fb[nfbcellidx(n, n->y, n->x)];
|
|
n->channels = targ->channels;
|
|
n->stylemask = targ->stylemask;
|
|
int ret = ncplane_putegc(n, gclust, sbytes);
|
|
n->channels = channels;
|
|
n->stylemask = stylemask;
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_cursor_at(const ncplane* n, nccell* c, char** gclust){
|
|
if(n->y == n->leny && n->x == n->lenx){
|
|
return -1;
|
|
}
|
|
const nccell* src = &n->fb[nfbcellidx(n, n->y, n->x)];
|
|
memcpy(c, src, sizeof(*src));
|
|
if(cell_simple_p(c)){
|
|
*gclust = NULL;
|
|
}else if((*gclust = strdup(nccell_extended_gcluster(n, src))) == NULL){
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
unsigned notcurses_supported_styles(const notcurses* nc){
|
|
return term_supported_styles(&nc->tcache);
|
|
}
|
|
|
|
unsigned notcurses_palette_size(const notcurses* nc){
|
|
return nc->tcache.caps.colors;
|
|
}
|
|
|
|
char* notcurses_detected_terminal(const notcurses* nc){
|
|
return termdesc_longterm(&nc->tcache);
|
|
}
|
|
|
|
bool notcurses_cantruecolor(const notcurses* nc){
|
|
return nc->tcache.caps.rgb;
|
|
}
|
|
|
|
// conform to the specified stylebits
|
|
void ncplane_set_styles(ncplane* n, unsigned stylebits){
|
|
n->stylemask = (stylebits & NCSTYLE_MASK);
|
|
}
|
|
|
|
void ncplane_styles_set(ncplane* n, unsigned stylebits){ // deprecated
|
|
ncplane_set_styles(n, stylebits);
|
|
}
|
|
|
|
// turn on any specified stylebits
|
|
void ncplane_on_styles(ncplane* n, unsigned stylebits){
|
|
n->stylemask |= (stylebits & NCSTYLE_MASK);
|
|
}
|
|
|
|
void ncplane_styles_on(ncplane* n, unsigned stylebits){ // deprecated
|
|
ncplane_on_styles(n, stylebits);
|
|
}
|
|
|
|
// turn off any specified stylebits
|
|
void ncplane_off_styles(ncplane* n, unsigned stylebits){
|
|
n->stylemask &= ~(stylebits & NCSTYLE_MASK);
|
|
}
|
|
|
|
void ncplane_styles_off(ncplane* n, unsigned stylebits){ // deprecated
|
|
ncplane_off_styles(n, stylebits);
|
|
}
|
|
|
|
// i hate the big allocation and two copies here, but eh what you gonna do?
|
|
// well, for one, we don't need the huge allocation FIXME
|
|
char* ncplane_vprintf_prep(const char* format, va_list ap){
|
|
const size_t size = BUFSIZ; // healthy estimate, can embiggen below
|
|
char* buf = malloc(size);
|
|
if(buf == NULL){
|
|
return NULL;
|
|
}
|
|
va_list vacopy;
|
|
va_copy(vacopy, ap);
|
|
int ret = vsnprintf(buf, size, format, ap);
|
|
if(ret < 0){
|
|
free(buf);
|
|
va_end(vacopy);
|
|
return NULL;
|
|
}
|
|
if((size_t)ret >= size){
|
|
char* tmp = realloc(buf, ret + 1);
|
|
if(tmp == NULL){
|
|
free(buf);
|
|
va_end(vacopy);
|
|
return NULL;
|
|
}
|
|
buf = tmp;
|
|
vsprintf(buf, format, vacopy);
|
|
}
|
|
va_end(vacopy);
|
|
return buf;
|
|
}
|
|
|
|
int ncplane_vprintf_yx(ncplane* n, int y, int x, const char* format, va_list ap){
|
|
char* r = ncplane_vprintf_prep(format, ap);
|
|
if(r == NULL){
|
|
return -1;
|
|
}
|
|
int ret = ncplane_putstr_yx(n, y, x, r);
|
|
free(r);
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_vprintf_aligned(ncplane* n, int y, ncalign_e align,
|
|
const char* format, va_list ap){
|
|
char* r = ncplane_vprintf_prep(format, ap);
|
|
if(r == NULL){
|
|
return -1;
|
|
}
|
|
int ret = ncplane_putstr_aligned(n, y, align, r);
|
|
free(r);
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_vprintf_stained(struct ncplane* n, const char* format, va_list ap){
|
|
char* r = ncplane_vprintf_prep(format, ap);
|
|
if(r == NULL){
|
|
return -1;
|
|
}
|
|
int ret = ncplane_putstr_stained(n, r);
|
|
free(r);
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_hline_interp(ncplane* n, const nccell* c, int len,
|
|
uint64_t c1, uint64_t c2){
|
|
unsigned ur, ug, ub;
|
|
int r1, g1, b1, r2, g2, b2;
|
|
int br1, bg1, bb1, br2, bg2, bb2;
|
|
ncchannels_fg_rgb8(c1, &ur, &ug, &ub);
|
|
r1 = ur; g1 = ug; b1 = ub;
|
|
ncchannels_fg_rgb8(c2, &ur, &ug, &ub);
|
|
r2 = ur; g2 = ug; b2 = ub;
|
|
ncchannels_bg_rgb8(c1, &ur, &ug, &ub);
|
|
br1 = ur; bg1 = ug; bb1 = ub;
|
|
ncchannels_bg_rgb8(c2, &ur, &ug, &ub);
|
|
br2 = ur; bg2 = ug; bb2 = ub;
|
|
int deltr = r2 - r1;
|
|
int deltg = g2 - g1;
|
|
int deltb = b2 - b1;
|
|
int deltbr = br2 - br1;
|
|
int deltbg = bg2 - bg1;
|
|
int deltbb = bb2 - bb1;
|
|
int ret;
|
|
nccell dupc = CELL_TRIVIAL_INITIALIZER;
|
|
if(nccell_duplicate(n, &dupc, c) < 0){
|
|
return -1;
|
|
}
|
|
bool fgdef = false, bgdef = false;
|
|
if(ncchannels_fg_default_p(c1) && ncchannels_fg_default_p(c2)){
|
|
fgdef = true;
|
|
}
|
|
if(ncchannels_bg_default_p(c1) && ncchannels_bg_default_p(c2)){
|
|
bgdef = true;
|
|
}
|
|
for(ret = 0 ; ret < len ; ++ret){
|
|
int r = (deltr * ret) / len + r1;
|
|
int g = (deltg * ret) / len + g1;
|
|
int b = (deltb * ret) / len + b1;
|
|
int br = (deltbr * ret) / len + br1;
|
|
int bg = (deltbg * ret) / len + bg1;
|
|
int bb = (deltbb * ret) / len + bb1;
|
|
if(!fgdef){
|
|
nccell_set_fg_rgb8(&dupc, r, g, b);
|
|
}
|
|
if(!bgdef){
|
|
nccell_set_bg_rgb8(&dupc, br, bg, bb);
|
|
}
|
|
if(ncplane_putc(n, &dupc) <= 0){
|
|
break;
|
|
}
|
|
}
|
|
nccell_release(n, &dupc);
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_vline_interp(ncplane* n, const nccell* c, int len,
|
|
uint64_t c1, uint64_t c2){
|
|
unsigned ur, ug, ub;
|
|
int r1, g1, b1, r2, g2, b2;
|
|
int br1, bg1, bb1, br2, bg2, bb2;
|
|
ncchannels_fg_rgb8(c1, &ur, &ug, &ub);
|
|
r1 = ur; g1 = ug; b1 = ub;
|
|
ncchannels_fg_rgb8(c2, &ur, &ug, &ub);
|
|
r2 = ur; g2 = ug; b2 = ub;
|
|
ncchannels_bg_rgb8(c1, &ur, &ug, &ub);
|
|
br1 = ur; bg1 = ug; bb1 = ub;
|
|
ncchannels_bg_rgb8(c2, &ur, &ug, &ub);
|
|
br2 = ur; bg2 = ug; bb2 = ub;
|
|
int deltr = (r2 - r1) / (len + 1);
|
|
int deltg = (g2 - g1) / (len + 1);
|
|
int deltb = (b2 - b1) / (len + 1);
|
|
int deltbr = (br2 - br1) / (len + 1);
|
|
int deltbg = (bg2 - bg1) / (len + 1);
|
|
int deltbb = (bb2 - bb1) / (len + 1);
|
|
int ret, ypos, xpos;
|
|
ncplane_cursor_yx(n, &ypos, &xpos);
|
|
nccell dupc = CELL_TRIVIAL_INITIALIZER;
|
|
if(nccell_duplicate(n, &dupc, c) < 0){
|
|
return -1;
|
|
}
|
|
bool fgdef = false, bgdef = false;
|
|
if(ncchannels_fg_default_p(c1) && ncchannels_fg_default_p(c2)){
|
|
fgdef = true;
|
|
}
|
|
if(ncchannels_bg_default_p(c1) && ncchannels_bg_default_p(c2)){
|
|
bgdef = true;
|
|
}
|
|
for(ret = 0 ; ret < len ; ++ret){
|
|
if(ncplane_cursor_move_yx(n, ypos + ret, xpos)){
|
|
return -1;
|
|
}
|
|
r1 += deltr;
|
|
g1 += deltg;
|
|
b1 += deltb;
|
|
br1 += deltbr;
|
|
bg1 += deltbg;
|
|
bb1 += deltbb;
|
|
if(!fgdef){
|
|
nccell_set_fg_rgb8(&dupc, r1, g1, b1);
|
|
}
|
|
if(!bgdef){
|
|
nccell_set_bg_rgb8(&dupc, br1, bg1, bb1);
|
|
}
|
|
if(ncplane_putc(n, &dupc) <= 0){
|
|
break;
|
|
}
|
|
}
|
|
nccell_release(n, &dupc);
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_box(ncplane* n, const nccell* ul, const nccell* ur,
|
|
const nccell* ll, const nccell* lr, const nccell* hl,
|
|
const nccell* vl, int ystop, int xstop,
|
|
unsigned ctlword){
|
|
int yoff, xoff, ymax, xmax;
|
|
ncplane_cursor_yx(n, &yoff, &xoff);
|
|
// must be at least 2x2, with its upper-left corner at the current cursor
|
|
if(ystop < yoff + 1){
|
|
logerror("ystop (%d) insufficient for yoff (%d)\n", ystop, yoff);
|
|
return -1;
|
|
}
|
|
if(xstop < xoff + 1){
|
|
logerror("xstop (%d) insufficient for xoff (%d)\n", xstop, xoff);
|
|
return -1;
|
|
}
|
|
ncplane_dim_yx(n, &ymax, &xmax);
|
|
// must be within the ncplane
|
|
if(xstop >= xmax || ystop >= ymax){
|
|
logerror("Boundary (%dx%d) beyond plane (%dx%d)\n", ystop, xstop, ymax, xmax);
|
|
return -1;
|
|
}
|
|
unsigned edges;
|
|
edges = !(ctlword & NCBOXMASK_TOP) + !(ctlword & NCBOXMASK_LEFT);
|
|
if(edges >= box_corner_needs(ctlword)){
|
|
if(ncplane_putc(n, ul) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
if(!(ctlword & NCBOXMASK_TOP)){ // draw top border, if called for
|
|
if(xstop - xoff >= 2){
|
|
if(ncplane_cursor_move_yx(n, yoff, xoff + 1)){
|
|
return -1;
|
|
}
|
|
if(!(ctlword & NCBOXGRAD_TOP)){ // cell styling, hl
|
|
if(ncplane_hline(n, hl, xstop - xoff - 1) < 0){
|
|
return -1;
|
|
}
|
|
}else{ // gradient, ul -> ur
|
|
if(ncplane_hline_interp(n, hl, xstop - xoff - 1, ul->channels, ur->channels) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
edges = !(ctlword & NCBOXMASK_TOP) + !(ctlword & NCBOXMASK_RIGHT);
|
|
if(edges >= box_corner_needs(ctlword)){
|
|
if(ncplane_cursor_move_yx(n, yoff, xstop)){
|
|
return -1;
|
|
}
|
|
if(ncplane_putc(n, ur) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
++yoff;
|
|
// middle rows (vertical lines)
|
|
if(yoff < ystop){
|
|
if(!(ctlword & NCBOXMASK_LEFT)){
|
|
if(ncplane_cursor_move_yx(n, yoff, xoff)){
|
|
return -1;
|
|
}
|
|
if((ctlword & NCBOXGRAD_LEFT)){ // grad styling, ul->ll
|
|
if(ncplane_vline_interp(n, vl, ystop - yoff, ul->channels, ll->channels) < 0){
|
|
return -1;
|
|
}
|
|
}else{
|
|
if(ncplane_vline(n, vl, ystop - yoff) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
if(!(ctlword & NCBOXMASK_RIGHT)){
|
|
if(ncplane_cursor_move_yx(n, yoff, xstop)){
|
|
return -1;
|
|
}
|
|
if((ctlword & NCBOXGRAD_RIGHT)){ // grad styling, ur->lr
|
|
if(ncplane_vline_interp(n, vl, ystop - yoff, ur->channels, lr->channels) < 0){
|
|
return -1;
|
|
}
|
|
}else{
|
|
if(ncplane_vline(n, vl, ystop - yoff) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// bottom line
|
|
yoff = ystop;
|
|
edges = !(ctlword & NCBOXMASK_BOTTOM) + !(ctlword & NCBOXMASK_LEFT);
|
|
if(edges >= box_corner_needs(ctlword)){
|
|
if(ncplane_cursor_move_yx(n, yoff, xoff)){
|
|
return -1;
|
|
}
|
|
if(ncplane_putc(n, ll) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
if(!(ctlword & NCBOXMASK_BOTTOM)){
|
|
if(xstop - xoff >= 2){
|
|
if(ncplane_cursor_move_yx(n, yoff, xoff + 1)){
|
|
return -1;
|
|
}
|
|
if(!(ctlword & NCBOXGRAD_BOTTOM)){ // cell styling, hl
|
|
if(ncplane_hline(n, hl, xstop - xoff - 1) < 0){
|
|
return -1;
|
|
}
|
|
}else{
|
|
if(ncplane_hline_interp(n, hl, xstop - xoff - 1, ll->channels, lr->channels) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
edges = !(ctlword & NCBOXMASK_BOTTOM) + !(ctlword & NCBOXMASK_RIGHT);
|
|
if(edges >= box_corner_needs(ctlword)){
|
|
if(ncplane_cursor_move_yx(n, yoff, xstop)){
|
|
return -1;
|
|
}
|
|
if(ncplane_putc(n, lr) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// takes the head of a list of bound planes. performs a DFS on all planes bound
|
|
// to 'n', and all planes down-list from 'n', moving all *by* 'dy' and 'dx'.
|
|
static void
|
|
move_bound_planes(ncplane* n, int dy, int dx){
|
|
while(n){
|
|
if(n->sprite){
|
|
sprixel_movefrom(n->sprite, n->absy, n->absx);
|
|
}
|
|
n->absy += dy;
|
|
n->absx += dx;
|
|
move_bound_planes(n->blist, dy, dx);
|
|
n = n->bnext;
|
|
}
|
|
}
|
|
|
|
int ncplane_move_yx(ncplane* n, int y, int x){
|
|
if(n == ncplane_notcurses(n)->stdplane){
|
|
return -1;
|
|
}
|
|
int dy, dx; // amount moved
|
|
if(n->boundto == n){
|
|
dy = y - n->absy;
|
|
dx = x - n->absx;
|
|
}else{
|
|
dy = (n->boundto->absy + y) - n->absy;
|
|
dx = (n->boundto->absx + x) - n->absx;
|
|
}
|
|
if(dy || dx){ // don't want to trigger sprixel_movefrom() if unneeded
|
|
if(n->sprite){
|
|
sprixel_movefrom(n->sprite, n->absy, n->absx);
|
|
}
|
|
n->absx += dx;
|
|
n->absy += dy;
|
|
move_bound_planes(n->blist, dy, dx);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ncplane_y(const ncplane* n){
|
|
if(n->boundto == n){
|
|
return n->absy;
|
|
}
|
|
return n->absy - n->boundto->absy;
|
|
}
|
|
|
|
int ncplane_x(const ncplane* n){
|
|
if(n->boundto == n){
|
|
return n->absx;
|
|
}
|
|
return n->absx - n->boundto->absx;
|
|
}
|
|
|
|
void ncplane_yx(const ncplane* n, int* y, int* x){
|
|
if(y){
|
|
*y = ncplane_y(n);
|
|
}
|
|
if(x){
|
|
*x = ncplane_x(n);
|
|
}
|
|
}
|
|
|
|
void ncplane_erase(ncplane* n){
|
|
if(n->sprite){
|
|
sprixel_hide(n->sprite);
|
|
}
|
|
// we must preserve the background, but a pure nccell_duplicate() would be
|
|
// wiped out by the egcpool_dump(). do a duplication (to get the stylemask
|
|
// and channels), and then reload.
|
|
char* egc = nccell_strdup(n, &n->basecell);
|
|
memset(n->fb, 0, sizeof(*n->fb) * n->leny * n->lenx);
|
|
egcpool_dump(&n->pool);
|
|
egcpool_init(&n->pool);
|
|
// we need to zero out the EGC before handing this off to cell_load, but
|
|
// we don't want to lose the channels/attributes, so explicit gcluster load.
|
|
n->basecell.gcluster = 0;
|
|
nccell_load(n, &n->basecell, egc);
|
|
free(egc);
|
|
n->y = n->x = 0;
|
|
}
|
|
|
|
int ncplane_erase_region(ncplane* n, int ystart, int xstart, int ylen, int xlen){
|
|
if(ylen < 0 || xlen < 0){
|
|
logerror("Won't erase section of negative length (%d, %d)\n", ylen, xlen);
|
|
return -1;
|
|
}
|
|
if(ystart < 0 || xstart < 0){
|
|
logerror("Illegal start of erase (%d, %d)\n", ystart, xstart);
|
|
return -1;
|
|
}
|
|
if(ystart >= ncplane_dim_y(n) || ystart + ylen > ncplane_dim_y(n)){
|
|
logerror("Illegal y spec for erase (%d, %d)\n", ystart, ylen);
|
|
return -1;
|
|
}
|
|
if(ylen == 0){
|
|
ylen = ncplane_dim_y(n) - ystart;
|
|
}
|
|
if(xstart >= ncplane_dim_x(n) || xstart + xlen > ncplane_dim_x(n)){
|
|
logerror("Illegal x spec for erase (%d, %d)\n", xstart, xlen);
|
|
return -1;
|
|
}
|
|
if(xlen == 0){
|
|
xlen = ncplane_dim_x(n) - ystart;
|
|
}
|
|
for(int y = ystart ; y < ystart + ylen ; ++y){
|
|
for(int x = xstart ; x < xstart + xlen ; ++x){
|
|
nccell_release(n, &n->fb[nfbcellidx(n, y, x)]);
|
|
nccell_init(&n->fb[nfbcellidx(n, y, x)]);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ncplane* notcurses_top(notcurses* n){
|
|
return ncplane_pile(n->stdplane)->top;
|
|
}
|
|
|
|
ncplane* notcurses_bottom(notcurses* n){
|
|
return ncplane_pile(n->stdplane)->bottom;
|
|
}
|
|
|
|
ncplane* ncpile_top(ncplane* n){
|
|
return ncplane_pile(n)->top;
|
|
}
|
|
|
|
ncplane* ncpile_bottom(ncplane* n){
|
|
return ncplane_pile(n)->bottom;
|
|
}
|
|
|
|
ncplane* ncplane_below(ncplane* n){
|
|
return n->below;
|
|
}
|
|
|
|
ncplane* ncplane_above(ncplane* n){
|
|
return n->above;
|
|
}
|
|
|
|
int notcurses_mouse_enable(notcurses* n){
|
|
if(mouse_enable(n->ttyfp)){
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// this seems to work (note difference in suffix, 'l' vs 'h'), but what about
|
|
// the sequences 1000 etc?
|
|
int notcurses_mouse_disable(notcurses* n){
|
|
fbuf f = {};
|
|
if(fbuf_init_small(&f)){
|
|
return -1;
|
|
}
|
|
if(mouse_disable(&f)){
|
|
fbuf_free(&f);
|
|
return -1;
|
|
}
|
|
if(fbuf_finalize(&f, n->ttyfp) < 0){
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool notcurses_canutf8(const notcurses* nc){
|
|
return nc->tcache.caps.utf8;
|
|
}
|
|
|
|
bool notcurses_canhalfblock(const notcurses* nc){
|
|
return nc->tcache.caps.utf8;
|
|
}
|
|
|
|
bool notcurses_canquadrant(const notcurses* nc){
|
|
return nc->tcache.caps.quadrants && nc->tcache.caps.utf8;
|
|
}
|
|
|
|
bool notcurses_cansextant(const notcurses* nc){
|
|
return nc->tcache.caps.sextants && nc->tcache.caps.utf8;
|
|
}
|
|
|
|
bool notcurses_canbraille(const notcurses* nc){
|
|
return nc->tcache.caps.braille && nc->tcache.caps.utf8;
|
|
}
|
|
|
|
bool notcurses_canfade(const notcurses* nc){
|
|
return nc->tcache.caps.can_change_colors || nc->tcache.caps.rgb;
|
|
}
|
|
|
|
bool notcurses_canchangecolor(const notcurses* nc){
|
|
return nccapability_canchangecolor(&nc->tcache.caps);
|
|
}
|
|
|
|
ncpalette* ncpalette_new(notcurses* nc){
|
|
ncpalette* p = malloc(sizeof(*p));
|
|
if(p){
|
|
memcpy(p, &nc->palette, sizeof(*p));
|
|
}
|
|
return p;
|
|
}
|
|
|
|
ncpalette* palette256_new(notcurses* nc){
|
|
return ncpalette_new(nc);
|
|
}
|
|
|
|
int ncpalette_use(notcurses* nc, const ncpalette* p){
|
|
int ret = -1;
|
|
if(!notcurses_canchangecolor(nc)){
|
|
return -1;
|
|
}
|
|
for(size_t z = 0 ; z < sizeof(p->chans) / sizeof(*p->chans) ; ++z){
|
|
if(nc->palette.chans[z] != p->chans[z]){
|
|
nc->palette.chans[z] = p->chans[z];
|
|
nc->palette_damage[z] = true;
|
|
}
|
|
}
|
|
ret = 0;
|
|
return ret;
|
|
}
|
|
|
|
int palette256_use(notcurses* nc, const ncpalette* p){
|
|
return ncpalette_use(nc, p);
|
|
}
|
|
|
|
void ncpalette_free(ncpalette* p){
|
|
free(p);
|
|
}
|
|
|
|
void palette256_free(ncpalette* p){
|
|
ncpalette_free(p);
|
|
}
|
|
|
|
bool ncplane_translate_abs(const ncplane* n, int* restrict y, int* restrict x){
|
|
ncplane_translate(ncplane_stdplane_const(n), n, y, x);
|
|
if(y){
|
|
if(*y < 0){
|
|
return false;
|
|
}
|
|
if(*y >= n->leny){
|
|
return false;
|
|
}
|
|
}
|
|
if(x){
|
|
if(*x < 0){
|
|
return false;
|
|
}
|
|
if(*x >= n->lenx){
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void ncplane_translate(const ncplane* src, const ncplane* dst,
|
|
int* restrict y, int* restrict x){
|
|
if(dst == NULL){
|
|
dst = ncplane_stdplane_const(src);
|
|
}
|
|
if(y){
|
|
*y = src->absy - dst->absy + *y;
|
|
}
|
|
if(x){
|
|
*x = src->absx - dst->absx + *x;
|
|
}
|
|
}
|
|
|
|
notcurses* ncplane_notcurses(const ncplane* n){
|
|
return ncplane_pile(n)->nc;
|
|
}
|
|
|
|
const notcurses* ncplane_notcurses_const(const ncplane* n){
|
|
return ncplane_pile_const(n)->nc;
|
|
}
|
|
|
|
int ncplane_abs_y(const ncplane* n){
|
|
return n->absy;
|
|
}
|
|
|
|
int ncplane_abs_x(const ncplane* n){
|
|
return n->absx;
|
|
}
|
|
|
|
void ncplane_abs_yx(const ncplane* n, int* RESTRICT y, int* RESTRICT x){
|
|
if(y){
|
|
*y = ncplane_abs_y(n);
|
|
}
|
|
if(x){
|
|
*x = ncplane_abs_x(n);
|
|
}
|
|
}
|
|
|
|
ncplane* ncplane_parent(ncplane* n){
|
|
return n->boundto;
|
|
}
|
|
|
|
const ncplane* ncplane_parent_const(const ncplane* n){
|
|
return n->boundto;
|
|
}
|
|
|
|
ncplane* ncplane_boundlist(ncplane* n){
|
|
return n->blist;
|
|
}
|
|
|
|
void ncplane_set_resizecb(ncplane* n, int(*resizecb)(ncplane*)){
|
|
if(n == notcurses_stdplane(ncplane_notcurses(n))){
|
|
return;
|
|
}
|
|
n->resizecb = resizecb;
|
|
}
|
|
|
|
int (*ncplane_resizecb(const ncplane* n))(ncplane*){
|
|
return n->resizecb;
|
|
}
|
|
|
|
int ncplane_resize_marginalized(ncplane* n){
|
|
const ncplane* parent = ncplane_parent_const(n);
|
|
// a marginalized plane cannot be larger than its oppressor plane =]
|
|
int maxy, maxx;
|
|
if(parent == n){ // root plane, need to use pile size
|
|
ncpile* p = ncplane_pile(n);
|
|
maxy = p->dimy;
|
|
maxx = p->dimx;
|
|
}else{
|
|
ncplane_dim_yx(parent, &maxy, &maxx);
|
|
}
|
|
if((maxy -= (n->margin_b + (n->absy - n->boundto->absy))) < 1){
|
|
maxy = 1;
|
|
}
|
|
if((maxx -= (n->margin_r + (n->absx - n->boundto->absx))) < 1){
|
|
maxx = 1;
|
|
}
|
|
int oldy, oldx;
|
|
ncplane_dim_yx(n, &oldy, &oldx); // current dimensions of 'n'
|
|
int keepleny = oldy > maxy ? maxy : oldy;
|
|
int keeplenx = oldx > maxx ? maxx : oldx;
|
|
// FIXME place it according to top/left
|
|
return ncplane_resize_internal(n, 0, 0, keepleny, keeplenx, 0, 0, maxy, maxx);
|
|
}
|
|
|
|
int ncplane_resize_maximize(ncplane* n){
|
|
const ncpile* pile = ncplane_pile(n); // FIXME should be taken against parent
|
|
const int rows = pile->dimy;
|
|
const int cols = pile->dimx;
|
|
int oldy, oldx;
|
|
ncplane_dim_yx(n, &oldy, &oldx); // current dimensions of 'n'
|
|
int keepleny = oldy > rows ? rows : oldy;
|
|
int keeplenx = oldx > cols ? cols : oldx;
|
|
return ncplane_resize_internal(n, 0, 0, keepleny, keeplenx, 0, 0, rows, cols);
|
|
}
|
|
|
|
int ncplane_resize_realign(ncplane* n){
|
|
const ncplane* parent = ncplane_parent_const(n);
|
|
if(parent == n){
|
|
logerror("Can't realign a root plane\n");
|
|
return 0;
|
|
}
|
|
if(n->halign == NCALIGN_UNALIGNED && n->valign == NCALIGN_UNALIGNED){
|
|
logerror("Passed a non-aligned plane\n");
|
|
return -1;
|
|
}
|
|
int xpos = ncplane_x(n);
|
|
if(n->halign != NCALIGN_UNALIGNED){
|
|
xpos = ncplane_halign(parent, n->halign, ncplane_dim_x(n));
|
|
}
|
|
int ypos = ncplane_y(n);
|
|
if(n->valign != NCALIGN_UNALIGNED){
|
|
ypos = ncplane_valign(parent, n->valign, ncplane_dim_y(n));
|
|
}
|
|
return ncplane_move_yx(n, ypos, xpos);
|
|
}
|
|
|
|
// The standard plane cannot be reparented; we return NULL in that case.
|
|
// If provided |newparent|==|n|, we are moving |n| to its own pile. If |n|
|
|
// is already bound to |newparent|, this is a no-op, and we return |n|.
|
|
// This is essentially a wrapper around ncplane_reparent_family() that first
|
|
// reparents any children to the parent of 'n', or makes them root planes if
|
|
// 'n' is a root plane.
|
|
ncplane* ncplane_reparent(ncplane* n, ncplane* newparent){
|
|
const notcurses* nc = ncplane_notcurses_const(n);
|
|
if(n == nc->stdplane){
|
|
logerror("Won't reparent standard plane\n");
|
|
return NULL; // can't reparent standard plane
|
|
}
|
|
if(n->boundto == newparent){
|
|
loginfo("Won't reparent plane to itself\n");
|
|
return n;
|
|
}
|
|
//notcurses_debug(ncplane_notcurses(n), stderr);
|
|
if(n->blist){
|
|
if(n->boundto == n){ // children become new root planes
|
|
ncplane* lastlink;
|
|
ncplane* child = n->blist;
|
|
do{
|
|
child->boundto = child;
|
|
lastlink = child;
|
|
child = child->bnext;
|
|
}while(child); // n->blist != NULL -> lastlink != NULL
|
|
if( (lastlink->bnext = ncplane_pile(n)->roots) ){
|
|
lastlink->bnext->bprev = &lastlink->bnext;
|
|
}
|
|
n->blist->bprev = &ncplane_pile(n)->roots;
|
|
ncplane_pile(n)->roots = n->blist;
|
|
}else{ // children are rebound to current parent
|
|
ncplane* lastlink;
|
|
ncplane* child = n->blist;
|
|
do{
|
|
child->boundto = n->boundto;
|
|
lastlink = child;
|
|
child = child->bnext;
|
|
}while(child); // n->blist != NULL -> lastlink != NULL
|
|
if( (lastlink->bnext = n->boundto->blist) ){
|
|
lastlink->bnext->bprev = &lastlink->bnext;
|
|
}
|
|
n->blist->bprev = &n->boundto->blist;
|
|
n->boundto->blist = n->blist;
|
|
}
|
|
n->blist = NULL;
|
|
}
|
|
// FIXME would be nice to skip ncplane_descendant_p() on this call...:/
|
|
return ncplane_reparent_family(n, newparent);
|
|
}
|
|
|
|
// unsplice self from the z-axis, and then unsplice all children, recursively.
|
|
// to be called before unbinding 'n' from old pile.
|
|
static void
|
|
unsplice_zaxis_recursive(ncplane* n){
|
|
if(ncplane_pile(n)->top == n){
|
|
ncplane_pile(n)->top = n->below;
|
|
}else{
|
|
n->above->below = n->below;
|
|
}
|
|
if(ncplane_pile(n)->bottom == n){
|
|
ncplane_pile(n)->bottom = n->above;
|
|
}else{
|
|
n->below->above = n->above;
|
|
}
|
|
for(ncplane* child = n->blist ; child ; child = child->bnext){
|
|
unsplice_zaxis_recursive(child);
|
|
}
|
|
}
|
|
|
|
// unsplice our sprixel from the pile's sprixellist, and then unsplice all
|
|
// children, recursively. call before unbinding. returns a doubly-linked
|
|
// list of any sprixels found.
|
|
static sprixel*
|
|
unsplice_sprixels_recursive(ncplane* n, sprixel* prev){
|
|
sprixel* s = n->sprite;
|
|
if(s){
|
|
if(s->prev){
|
|
s->prev->next = s->next;
|
|
}else{
|
|
ncplane_pile(n)->sprixelcache = s->next;
|
|
}
|
|
if(s->next){
|
|
s->next->prev = s->prev;
|
|
}
|
|
if( (s->prev = prev) ){
|
|
prev->next = s;
|
|
}
|
|
s->next = NULL;
|
|
prev = s;
|
|
}
|
|
for(ncplane* child = n->blist ; child ; child = child->bnext){
|
|
unsplice_sprixels_recursive(child, prev);
|
|
while(prev->next){ // FIXME lame
|
|
prev = prev->next;
|
|
}
|
|
}
|
|
return prev;
|
|
}
|
|
|
|
// recursively splice 'n' and children into the z-axis, above 'n->boundto'.
|
|
// handles 'n' == 'n->boundto'. to be called after binding 'n' into new pile.
|
|
static void
|
|
splice_zaxis_recursive(ncplane* n){
|
|
if(n != n->boundto){
|
|
if((n->above = n->boundto->above) == NULL){
|
|
n->pile->top = n;
|
|
}else{
|
|
n->boundto->above->below = n;
|
|
}
|
|
n->below = n->boundto;
|
|
n->boundto->above = n;
|
|
}
|
|
for(ncplane* child = n->blist ; child ; child = child->bnext){
|
|
splice_zaxis_recursive(child);
|
|
}
|
|
}
|
|
|
|
ncplane* ncplane_reparent_family(ncplane* n, ncplane* newparent){
|
|
if(n == ncplane_notcurses(n)->stdplane){
|
|
return NULL; // can't reparent standard plane
|
|
}
|
|
if(ncplane_descendant_p(newparent, n)){
|
|
return NULL;
|
|
}
|
|
//notcurses_debug(ncplane_notcurses(n), stderr);
|
|
if(n->boundto == newparent){ // no-op
|
|
return n;
|
|
}
|
|
if(n->bprev){ // extract from sibling list
|
|
if( (*n->bprev = n->bnext) ){
|
|
n->bnext->bprev = n->bprev;
|
|
}
|
|
}
|
|
// ncplane_notcurses() goes through ncplane_pile(). since we're possibly
|
|
// destroying piles below, get the notcurses reference early on.
|
|
notcurses* nc = ncplane_notcurses(n);
|
|
// if leaving a pile, extract n from the old zaxis, and also any sprixel
|
|
sprixel* s = NULL;
|
|
if(n == newparent || ncplane_pile(n) != ncplane_pile(newparent)){
|
|
unsplice_zaxis_recursive(n);
|
|
s = unsplice_sprixels_recursive(n, NULL);
|
|
}
|
|
n->boundto = newparent;
|
|
if(n == n->boundto){ // we're a new root plane
|
|
n->bnext = NULL;
|
|
n->bprev = NULL;
|
|
splice_zaxis_recursive(n);
|
|
pthread_mutex_lock(&nc->pilelock);
|
|
if(ncplane_pile(n)->top == NULL){ // did we just empty our pile?
|
|
ncpile_destroy(ncplane_pile(n));
|
|
}
|
|
make_ncpile(ncplane_notcurses(n), n);
|
|
pthread_mutex_unlock(&nc->pilelock);
|
|
}else{ // establish ourselves as a sibling of new parent's children
|
|
if( (n->bnext = newparent->blist) ){
|
|
n->bnext->bprev = &n->bnext;
|
|
}
|
|
n->bprev = &newparent->blist;
|
|
newparent->blist = n;
|
|
// place it immediately above the new binding plane if crossing piles
|
|
if(n->pile != ncplane_pile(n->boundto)){
|
|
splice_zaxis_recursive(n);
|
|
pthread_mutex_lock(&nc->pilelock);
|
|
if(ncplane_pile(n)->top == NULL){ // did we just empty our pile?
|
|
ncpile_destroy(ncplane_pile(n));
|
|
}
|
|
n->pile = ncplane_pile(n->boundto);
|
|
pthread_mutex_unlock(&nc->pilelock);
|
|
}
|
|
}
|
|
if(s){ // must be on new plane, with sprixels to donate
|
|
sprixel* lame = s;
|
|
while(lame->next){
|
|
lame = lame->next;
|
|
}
|
|
if( (lame->next = n->pile->sprixelcache) ){
|
|
n->pile->sprixelcache->prev = lame;
|
|
}
|
|
n->pile->sprixelcache = s;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
bool ncplane_set_scrolling(ncplane* n, bool scrollp){
|
|
bool old = n->scrolling;
|
|
n->scrolling = scrollp;
|
|
return old;
|
|
}
|
|
|
|
bool ncplane_scrolling_p(const ncplane* n){
|
|
return n->scrolling;
|
|
}
|
|
|
|
// extract an integer, which must be non-negative, and followed by either a
|
|
// comma or a NUL terminator.
|
|
static int
|
|
lex_long(const char* op, int* i, char** endptr){
|
|
errno = 0;
|
|
long l = strtol(op, endptr, 10);
|
|
if(l < 0 || (l == LONG_MAX && errno == ERANGE) || (l > INT_MAX)){
|
|
fprintf(stderr, "Invalid margin: %s\n", op);
|
|
return -1;
|
|
}
|
|
if((**endptr != ',' && **endptr) || *endptr == op){
|
|
fprintf(stderr, "Invalid margin: %s\n", op);
|
|
return -1;
|
|
}
|
|
*i = l;
|
|
return 0;
|
|
}
|
|
|
|
int notcurses_lex_scalemode(const char* op, ncscale_e* scalemode){
|
|
if(strcasecmp(op, "stretch") == 0){
|
|
*scalemode = NCSCALE_STRETCH;
|
|
}else if(strcasecmp(op, "scalehi") == 0){
|
|
*scalemode = NCSCALE_SCALE_HIRES;
|
|
}else if(strcasecmp(op, "hires") == 0){
|
|
*scalemode = NCSCALE_NONE_HIRES;
|
|
}else if(strcasecmp(op, "scale") == 0){
|
|
*scalemode = NCSCALE_SCALE;
|
|
}else if(strcasecmp(op, "none") == 0){
|
|
*scalemode = NCSCALE_NONE;
|
|
}else{
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const char* notcurses_str_scalemode(ncscale_e scalemode){
|
|
if(scalemode == NCSCALE_STRETCH){
|
|
return "stretch";
|
|
}else if(scalemode == NCSCALE_SCALE){
|
|
return "scale";
|
|
}else if(scalemode == NCSCALE_NONE){
|
|
return "none";
|
|
}else if(scalemode == NCSCALE_NONE_HIRES){
|
|
return "hires";
|
|
}else if(scalemode == NCSCALE_SCALE_HIRES){
|
|
return "scalehi";
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int notcurses_lex_margins(const char* op, notcurses_options* opts){
|
|
char* eptr;
|
|
if(lex_long(op, &opts->margin_t, &eptr)){
|
|
return -1;
|
|
}
|
|
if(!*eptr){ // allow a single value to be specified for all four margins
|
|
opts->margin_r = opts->margin_l = opts->margin_b = opts->margin_t;
|
|
return 0;
|
|
}
|
|
op = ++eptr; // once here, we require four values
|
|
if(lex_long(op, &opts->margin_r, &eptr) || !*eptr){
|
|
return -1;
|
|
}
|
|
op = ++eptr;
|
|
if(lex_long(op, &opts->margin_b, &eptr) || !*eptr){
|
|
return -1;
|
|
}
|
|
op = ++eptr;
|
|
if(lex_long(op, &opts->margin_l, &eptr) || *eptr){ // must end in NUL
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int notcurses_inputready_fd(notcurses* n){
|
|
return n->tcache.input.infd;
|
|
}
|
|
|
|
int ncdirect_inputready_fd(ncdirect* n){
|
|
return n->tcache.input.infd;
|
|
}
|
|
|
|
// FIXME speed this up, PoC
|
|
// given an egc, get its index in the blitter's EGC set
|
|
static int
|
|
get_blitter_egc_idx(const struct blitset* bset, const char* egc){
|
|
wchar_t wc;
|
|
mbstate_t mbs = {};
|
|
size_t sret = mbrtowc(&wc, egc, strlen(egc), &mbs);
|
|
if(sret == (size_t)-1 || sret == (size_t)-2){
|
|
return -1;
|
|
}
|
|
wchar_t* wptr = wcsrchr(bset->egcs, wc);
|
|
if(wptr == NULL){
|
|
//fprintf(stderr, "FAILED TO FIND [%s] (%lc) in [%ls]\n", egc, wc, bset->egcs);
|
|
return -1;
|
|
}
|
|
//fprintf(stderr, "FOUND [%s] (%lc) in [%ls] (%zu)\n", egc, wc, bset->egcs, wptr - bset->egcs);
|
|
return wptr - bset->egcs;
|
|
}
|
|
|
|
static bool
|
|
is_bg_p(int idx, int py, int px, int width){
|
|
// bit increases to the right, and down
|
|
const int bpos = py * width + px; // bit corresponding to pixel, 0..|egcs|-1
|
|
const unsigned mask = 1u << bpos;
|
|
if(idx & mask){
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static inline uint32_t*
|
|
ncplane_as_rgba_internal(const ncplane* nc, ncblitter_e blit,
|
|
int begy, int begx, int leny, int lenx,
|
|
int* pxdimy, int* pxdimx){
|
|
const notcurses* ncur = ncplane_notcurses_const(nc);
|
|
if(begy < 0 || begx < 0){
|
|
logerror("Nil offset (%d,%d)\n", begy, begx);
|
|
return NULL;
|
|
}
|
|
if(begx >= nc->lenx || begy >= nc->leny){
|
|
logerror("Invalid offset (%d,%d)\n", begy, begx);
|
|
return NULL;
|
|
}
|
|
if(lenx == -1){ // -1 means "to the end"; use all space available
|
|
lenx = nc->lenx - begx;
|
|
}
|
|
if(leny == -1){
|
|
leny = nc->leny - begy;
|
|
}
|
|
if(lenx <= 0 || leny <= 0){ // no need to draw zero-size object, exit
|
|
logerror("Nil geometry (%dx%d)\n", leny, lenx);
|
|
return NULL;
|
|
}
|
|
//fprintf(stderr, "sum: %d/%d avail: %d/%d\n", begy + leny, begx + lenx, nc->leny, nc->lenx);
|
|
if(begx + lenx > nc->lenx || begy + leny > nc->leny){
|
|
logerror("Invalid specs %d + %d > %d or %d + %d > %d\n",
|
|
begx, lenx, nc->lenx, begy, leny, nc->leny);
|
|
return NULL;
|
|
}
|
|
if(blit == NCBLIT_PIXEL){ // FIXME extend this to support sprixels
|
|
logerror("Pixel blitter %d not yet supported\n", blit);
|
|
return NULL;
|
|
}
|
|
if(blit == NCBLIT_DEFAULT){
|
|
logerror("Must specify exact blitter, not NCBLIT_DEFAULT\n");
|
|
return NULL;
|
|
}
|
|
const struct blitset* bset = lookup_blitset(&ncur->tcache, blit, false);
|
|
if(bset == NULL){
|
|
logerror("Blitter %d invalid in current environment\n", blit);
|
|
return NULL;
|
|
}
|
|
//fprintf(stderr, "ALLOCATING %u %d %d %p\n", 4u * lenx * leny * 2, leny, lenx, bset);
|
|
if(pxdimy){
|
|
*pxdimy = leny * bset->height;
|
|
}
|
|
if(pxdimx){
|
|
*pxdimx = lenx * bset->width;
|
|
}
|
|
uint32_t* ret = malloc(sizeof(*ret) * lenx * bset->width * leny * bset->height);
|
|
//fprintf(stderr, "GEOM: %d/%d %d/%d ret: %p\n", bset->height, bset->width, *pxdimy, *pxdimx, ret);
|
|
if(ret){
|
|
for(int y = begy, targy = 0 ; y < begy + leny ; ++y, targy += bset->height){
|
|
for(int x = begx, targx = 0 ; x < begx + lenx ; ++x, targx += bset->width){
|
|
uint16_t stylemask;
|
|
uint64_t channels;
|
|
char* c = ncplane_at_yx(nc, y, x, &stylemask, &channels);
|
|
if(c == NULL){
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
int idx = get_blitter_egc_idx(bset, c);
|
|
if(idx < 0){
|
|
free(ret);
|
|
free(c);
|
|
return NULL;
|
|
}
|
|
unsigned fr, fg, fb, br, bg, bb, fa, ba;
|
|
ncchannels_fg_rgb8(channels, &fr, &fb, &fg);
|
|
fa = ncchannels_fg_alpha(channels);
|
|
ncchannels_bg_rgb8(channels, &br, &bb, &bg);
|
|
ba = ncchannels_bg_alpha(channels);
|
|
// handle each destination pixel from this cell
|
|
for(int py = 0 ; py < bset->height ; ++py){
|
|
for(int px = 0 ; px < bset->width ; ++px){
|
|
uint32_t* p = &ret[(targy + py) * (lenx * bset->width) + (targx + px)];
|
|
bool background = is_bg_p(idx, py, px, bset->width);
|
|
if(background){
|
|
if(ba){
|
|
*p = 0;
|
|
}else{
|
|
ncpixel_set_a(p, 0xff);
|
|
ncpixel_set_r(p, br);
|
|
ncpixel_set_g(p, bb);
|
|
ncpixel_set_b(p, bg);
|
|
}
|
|
}else{
|
|
if(fa){
|
|
*p = 0;
|
|
}else{
|
|
ncpixel_set_a(p, 0xff);
|
|
ncpixel_set_r(p, fr);
|
|
ncpixel_set_g(p, fb);
|
|
ncpixel_set_b(p, fg);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
free(c);
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
uint32_t* ncplane_as_rgba(const ncplane* nc, ncblitter_e blit,
|
|
int begy, int begx, int leny, int lenx,
|
|
int* pxdimy, int* pxdimx){
|
|
int px, py;
|
|
if(!pxdimy){
|
|
pxdimy = &py;
|
|
}
|
|
if(!pxdimx){
|
|
pxdimx = &px;
|
|
}
|
|
return ncplane_as_rgba_internal(nc, blit, begy, begx, leny, lenx, pxdimy, pxdimx);
|
|
}
|
|
|
|
// return a heap-allocated copy of the contents
|
|
char* ncplane_contents(ncplane* nc, int begy, int begx, int leny, int lenx){
|
|
if(begy < 0 || begx < 0){
|
|
logerror("Beginning coordinates (%d/%d) below 0\n", begy, begx);
|
|
return NULL;
|
|
}
|
|
if(begx >= nc->lenx || begy >= nc->leny){
|
|
logerror("Beginning coordinates (%d/%d) exceeded lengths (%d/%d)\n",
|
|
begy, begx, nc->leny, nc->lenx);
|
|
return NULL;
|
|
}
|
|
if(lenx == -1){ // -1 means "to the end"; use all space available
|
|
lenx = nc->lenx - begx;
|
|
}
|
|
if(leny == -1){
|
|
leny = nc->leny - begy;
|
|
}
|
|
if(lenx < 0 || leny < 0){ // no need to draw zero-size object, exit
|
|
logerror("Lengths (%d/%d) below 0\n", leny, lenx);
|
|
return NULL;
|
|
}
|
|
if(begx + lenx > nc->lenx || begy + leny > nc->leny){
|
|
logerror("Ending coordinates (%d/%d) exceeded lengths (%d/%d)\n",
|
|
begy + leny, begx + lenx, nc->leny, nc->lenx);
|
|
return NULL;
|
|
}
|
|
size_t retlen = 1;
|
|
char* ret = malloc(retlen);
|
|
if(ret){
|
|
for(int y = begy, targy = 0 ; y < begy + leny ; ++y, targy += 2){
|
|
for(int x = begx, targx = 0 ; x < begx + lenx ; ++x, ++targx){
|
|
nccell ncl = CELL_TRIVIAL_INITIALIZER;
|
|
// we need ncplane_at_yx_cell() here instead of ncplane_at_yx(),
|
|
// because we should only have one copy of each wide EGC.
|
|
int clen;
|
|
if((clen = ncplane_at_yx_cell(nc, y, x, &ncl)) < 0){
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
const char* c = nccell_extended_gcluster(nc, &ncl);
|
|
if(clen){
|
|
char* tmp = realloc(ret, retlen + clen);
|
|
if(!tmp){
|
|
free(ret);
|
|
return NULL;
|
|
}
|
|
ret = tmp;
|
|
memcpy(ret + retlen - 1, c, clen);
|
|
retlen += clen;
|
|
}
|
|
}
|
|
}
|
|
ret[retlen - 1] = '\0';
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int nccells_double_box(ncplane* n, uint32_t attr, uint64_t channels,
|
|
nccell* ul, nccell* ur, nccell* ll, nccell* lr, nccell* hl, nccell* vl){
|
|
if(notcurses_canutf8(ncplane_notcurses(n))){
|
|
return nccells_load_box(n, attr, channels, ul, ur, ll, lr, hl, vl, NCBOXDOUBLE);
|
|
}
|
|
return nccells_ascii_box(n, attr, channels, ul, ur, ll, lr, hl, vl);
|
|
}
|
|
|
|
int cells_double_box(ncplane* n, uint32_t attr, uint64_t channels,
|
|
nccell* ul, nccell* ur, nccell* ll, nccell* lr, nccell* hl, nccell* vl){
|
|
return nccells_double_box(n, attr, channels, ul, ur, ll, lr, hl, vl);
|
|
}
|
|
|
|
int nccells_rounded_box(ncplane* n, uint32_t attr, uint64_t channels,
|
|
nccell* ul, nccell* ur, nccell* ll, nccell* lr, nccell* hl, nccell* vl){
|
|
if(notcurses_canutf8(ncplane_notcurses(n))){
|
|
return nccells_load_box(n, attr, channels, ul, ur, ll, lr, hl, vl, NCBOXROUND);
|
|
}
|
|
return nccells_ascii_box(n, attr, channels, ul, ur, ll, lr, hl, vl);
|
|
}
|
|
|
|
int cells_rounded_box(ncplane* n, uint32_t attr, uint64_t channels,
|
|
nccell* ul, nccell* ur, nccell* ll, nccell* lr, nccell* hl, nccell* vl){
|
|
return nccells_rounded_box(n, attr, channels, ul, ur, ll, lr, hl, vl);
|
|
}
|
|
|
|
// find the center coordinate of a plane, preferring the top/left in the
|
|
// case of an even number of rows/columns (in such a case, there will be one
|
|
// more cell to the bottom/right of the center than the top/left). the
|
|
// center is then modified relative to the plane's origin.
|
|
void ncplane_center_abs(const ncplane* n, int* RESTRICT y, int* RESTRICT x){
|
|
ncplane_center(n, y, x);
|
|
if(y){
|
|
*y += n->absy;
|
|
}
|
|
if(x){
|
|
*x += n->absx;
|
|
}
|
|
}
|
|
|
|
void nclog(const char* fmt, ...){
|
|
va_list va;
|
|
va_start(va, fmt);
|
|
vfprintf(stderr, fmt, va);
|
|
va_end(va);
|
|
}
|
|
|
|
int ncplane_putstr_yx(struct ncplane* n, int y, int x, const char* gclusters){
|
|
int ret = 0;
|
|
while(*gclusters){
|
|
int wcs;
|
|
int cols = ncplane_putegc_yx(n, y, x, gclusters, &wcs);
|
|
//fprintf(stderr, "wrote %.*s %d cols %d bytes now at %d/%d\n", wcs, gclusters, cols, wcs, n->y, n->x);
|
|
if(cols < 0){
|
|
return -ret;
|
|
}
|
|
if(wcs == 0){
|
|
break;
|
|
}
|
|
// after the first iteration, just let the cursor code control where we
|
|
// print, so that scrolling is taken into account
|
|
y = -1;
|
|
x = -1;
|
|
gclusters += wcs;
|
|
ret += cols;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_putstr_stained(struct ncplane* n, const char* gclusters){
|
|
int ret = 0;
|
|
while(*gclusters){
|
|
int wcs;
|
|
int cols = ncplane_putegc_stained(n, gclusters, &wcs);
|
|
if(cols < 0){
|
|
return -ret;
|
|
}
|
|
if(wcs == 0){
|
|
break;
|
|
}
|
|
gclusters += wcs;
|
|
ret += cols;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_putwstr_stained(ncplane* n, const wchar_t* gclustarr){
|
|
// maximum of six UTF8-encoded bytes per wchar_t
|
|
const size_t mbytes = (wcslen(gclustarr) * WCHAR_MAX_UTF8BYTES) + 1;
|
|
char* mbstr = malloc(mbytes); // need cast for c++ callers
|
|
if(mbstr == NULL){
|
|
return -1;
|
|
}
|
|
size_t s = wcstombs(mbstr, gclustarr, mbytes);
|
|
if(s == (size_t)-1){
|
|
free(mbstr);
|
|
return -1;
|
|
}
|
|
int r = ncplane_putstr_stained(n, mbstr);
|
|
free(mbstr);
|
|
return r;
|
|
}
|
|
|
|
int ncplane_putnstr_aligned(struct ncplane* n, int y, ncalign_e align, size_t s, const char* str){
|
|
char* chopped = strndup(str, s);
|
|
int ret = ncplane_putstr_aligned(n, y, align, chopped);
|
|
free(chopped);
|
|
return ret;
|
|
}
|
|
|
|
int ncplane_putnstr_yx(struct ncplane* n, int y, int x, size_t s, const char* gclusters){
|
|
int ret = 0;
|
|
int offset = 0;
|
|
//fprintf(stderr, "PUT %zu at %d/%d [%.*s]\n", s, y, x, (int)s, gclusters);
|
|
while((size_t)offset < s && gclusters[offset]){
|
|
int wcs;
|
|
int cols = ncplane_putegc_yx(n, y, x, gclusters + offset, &wcs);
|
|
if(cols < 0){
|
|
return -ret;
|
|
}
|
|
if(wcs == 0){
|
|
break;
|
|
}
|
|
// after the first iteration, just let the cursor code control where we
|
|
// print, so that scrolling is taken into account
|
|
y = -1;
|
|
x = -1;
|
|
offset += wcs;
|
|
ret += cols;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int notcurses_ucs32_to_utf8(const uint32_t* ucs32, unsigned ucs32count,
|
|
unsigned char* resultbuf, size_t buflen){
|
|
if(u32_to_u8(ucs32, ucs32count, resultbuf, &buflen) == NULL){
|
|
return -1;
|
|
}
|
|
return buflen;
|
|
}
|
|
|
|
int ncstrwidth(const char* mbs){
|
|
int cols = 0; // number of columns consumed thus far
|
|
do{
|
|
int thesecols, thesebytes;
|
|
thesebytes = utf8_egc_len(mbs, &thesecols);
|
|
if(thesebytes < 0){
|
|
return -1;
|
|
}
|
|
mbs += thesebytes;
|
|
cols += thesecols;
|
|
}while(*mbs);
|
|
return cols;
|
|
}
|
|
|
|
void ncplane_pixelgeom(const ncplane* n, int* RESTRICT pxy, int* RESTRICT pxx,
|
|
int* RESTRICT celldimy, int* RESTRICT celldimx,
|
|
int* RESTRICT maxbmapy, int* RESTRICT maxbmapx){
|
|
notcurses* nc = ncplane_notcurses(n);
|
|
if(celldimy){
|
|
*celldimy = nc->tcache.cellpixy;
|
|
}
|
|
if(celldimx){
|
|
*celldimx = nc->tcache.cellpixx;
|
|
}
|
|
if(pxy){
|
|
*pxy = nc->tcache.cellpixy * ncplane_dim_y(n);
|
|
}
|
|
if(pxx){
|
|
*pxx = nc->tcache.cellpixx * ncplane_dim_x(n);
|
|
}
|
|
if(notcurses_check_pixel_support(nc) > 0){
|
|
if(maxbmapy){
|
|
*maxbmapy = nc->tcache.cellpixy * ncplane_dim_y(n);
|
|
if(*maxbmapy > nc->tcache.sixel_maxy && nc->tcache.sixel_maxy){
|
|
*maxbmapy = nc->tcache.sixel_maxy;
|
|
}
|
|
}
|
|
if(maxbmapx){
|
|
*maxbmapx = nc->tcache.cellpixx * ncplane_dim_x(n);
|
|
if(*maxbmapx > nc->tcache.sixel_maxx && nc->tcache.sixel_maxx){
|
|
*maxbmapx = nc->tcache.sixel_maxx;
|
|
}
|
|
}
|
|
}else{
|
|
if(maxbmapy){
|
|
*maxbmapy = 0;
|
|
}
|
|
if(maxbmapx){
|
|
*maxbmapx = 0;
|
|
}
|
|
}
|
|
}
|